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October 25, 2014

Posted by **jim** on Sunday, February 10, 2008 at 5:48pm.

- math -
**Reiny**, Sunday, February 10, 2008 at 6:34pm4624 = 3400(1+i)^8

(1+i)^8 = 1.36 take the 8th root of both sides

1+i = 1.03918

i = .03918 or 3.9%

- math -
**Guido**, Sunday, February 10, 2008 at 8:24pmWe use the formula:

M = P( 1 + i )^n

M is the final amount including the principal.

P is the principal amount.

i is the rate of interest per year.

n is the number of years invested.

M = 4624

P = 3400

n = 8 years

We seek i.

4624 = 3400(1 + i)^8

You do the rest.

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