SOLUTION: 6 1/3, 19, 57

Question 1072101: 6 1/3, 19, 57
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52794) (Show Source): You can put this solution on YOUR website!
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Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
Geometric progression, common ratio 3.

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