PORTLAND, Ore., March 28 (Ticker) -- After one of their worst efforts of the season, the Portland Trail Blazers knew they had to take care of business.

Rasheed Wallace scored 20 points to lead seven players in double figures as the Trail Blazers used a big third quarter to coast to a 112-95 rout of the league-leading Dallas Mavericks.

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"We approached this game with a business-like attitude," Portland coach Maurice Cheeks said. "Not a lot was said before the game. The guys knew what we had to do. We had the weight on our shoulders."

Coming off a poor showing in Wednesday's loss at Utah and in danger of dropping a season-high fourth straight game, the Trail Blazers delivered a virtually flawless performance in the third quarter.

In its loss to the Jazz, almost everything went wrong for Portland. It allowed Utah to make half its shots and collect 31 assists, while the Jazz forced 20 turnovers.

Portland took a 51-44 lead into the locker room and used a 22-7 burst to extend its lead from 68-60 to 90-67 with just under one minute remaining in the period. The Blazers shot 81 percent (17-of-21) from the field, outrebounded the Mavs, 10-1, and scored 44 points.

Playing with a chip on its shoulder and with injured point guard Scottie Pippen cheering from the bench, Portland made Dallas appear lost on defense most of the night with its solid ball movement and strong shooting performance.

"We came out with a team game, not just because we had seven players in double figures, but a team game all around in everything we did," Cheeks said. "Defense, rebounding, shooting ball movement - all of that was really good. I just think tonight's game was good because our guys were prepared. They knew what we had to do."

But according to Bonzi Wells, it wasn't necessarily Cheeks' idea for the emphasis on ball movement.

"We said 'Coach, we need more movement," Wells said. "If we're going to be a tough team to guard, it's going to take all five of us, not one guy pressing to the post and the rest of us standing there. We all have to move around and touch the ball.

"We exposed them. We moved the ball from side to side and got easy drives through the lane. It was just beautiful basketball today."

Wallace had seven points during the decisive spurt, helping Portland (45-27) move percentage points ahead of Minnesota for fourth place in the Western Conference. The top four teams in each conference have the home-court edge in the opening round of the playoffs.

Wallace led the Blazers in scoring for the second straight game, but he had plenty of help. Dale Davis victimized Shawn Bradley and Raef LaFrentz, scoring all 16 of his points in the third. Derek Anderson and Damon Stoudamire efficiently directed the offense, combining for 11 assists and 33 points.

Overall, Portland had one of their best all-around efforts of the season. It shot 54 percent (44-of-81) and outrebounded the Mavericks, 44-27. Its ball movement also led to 29 assists.

Dirk Nowitzki scored 20 points for Dallas (54-18), which played without injured star guard Michael Finley for the fifth straight game and had a three-game winning streak stopped.

The loss reduced Dallas' lead to 2 1/2 games over second place San Antonio in the Midwest Division.

The Mavericks suffered just their second loss of more than 15 points and left coach Don Nelson and Nowitzki ashamed.

"That's embarrassing," he said. "Rebounding has been a problem all year and they just totally dominated us there. We don't expect to win the rebound game every night, but we do expect to be a little closer than that."

"It wasn't just the third quarter, it was the whole game," Nowitzki said. "It was one of the worst performances of the season."