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I want to do my math homework.
1 divided by 1/3+ 1 = 4 times (the middle ball is several times that of the small ball).

4+2.5- 1 = 5.5 times (the big ball is several times that of the small ball)

Small ball: middle ball: big ball = 5.5: 4: 1 = 9: 8: 2.

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