SOLUTION: 1,1.5,3,7.5,21,x, x=?

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Question 883624: 1,1.5,3,7.5,21,x,
x=?

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
1 0.5 1 2 4
1.5 1.5 3 6 4
3 4.5 9 10
7.5 13.5 19
21 32.5
53.5
The sixth term (x) could be 53.5