The problem states that 72 is 80% of some number. We need to find that number. We can represent this as the equation $72 = 0.80 * x$, where $x$ is the unknown number.

1. Problem Description

The problem states that 72 is 80% of some number. We need to find that number. We can represent this as the equation $72 = 0.80 * x$, where $x$ is the unknown number.

2. Solution Steps

To find the number, we need to solve for $x$ in the equation $72 = 0.80 * x$.

We can do this by dividing both sides of the equation by 0.80:

$x = \frac{72}{0.80}$

To divide by 0.8, we can multiply both the numerator and denominator by 10 to remove the decimal:

$x = \frac{720}{8}$

Now, we perform the division:

$x = 90$

3. Final Answer

The final answer is 90.