Solution - Compound interest (basic)

62056.79

62056.79

Step-by-step explanation

Use $A = P {(1 + r / n)}^{(n t)}$ with $P = 21, 328$ , $r = 9 %$ , $n = 4$ , $t = 12$ .

Compute period rate and exponent: $\frac{r}{n} = 0.0225$ , $n t = 48$ , so the growth factor is $2.9096396121$ .

Multiply principal by growth factor: $21, 328$ × $2.9096396121$ = $62056.79$ .

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Compound interest appears in savings, loans, and investments. Understanding it builds strong financial literacy.