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The Rule of 72: The Simple Math Behind Doubling Your MoneyThe Rule of 72 stems from the mathematics of exponential growth. It’s not perfect—its accuracy wobbles with very high or very ...
The Rule of 72 can estimate compounding periods using natural logarithms. In mathematics, the logarithm is the opposite concept of a power; for example, the opposite of 10³ is log base 10 of 1,000.
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