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An initial investment of $4 is worth $144 after 5 years. If the annual growth reflects a geometric

sequence, approximately how much will the investment be worth after 11 years?


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User Jackie Yeh
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1 Answer

4 votes

Final answer:

The investment will be worth approximately $126.98 after 11 years.

Step-by-step explanation:

To find the value of the investment after 11 years, we need to determine the common ratio for the geometric sequence. We know that the initial investment of $4 is worth $144 after 5 years. Using the formula for compound interest, we can set up the equation:

$4
(1 + r)^5 = $144

Solving for r, we get r โ‰ˆ 1.6494. Now we can use this common ratio to find the value after 11 years:

$4
(1 + 1.6494)^(11) โ‰ˆ $126.98

Therefore, the investment will be worth approximately $126.98 after 11 years.

User AndrewH
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