The question asks: "23 is 4% of what number?"

To solve this, we can set up the equation: $23 = \frac{4}{100} \times x$ Where $x$ is the unknown number.

To find $x$, follow these steps:

1. Divide both sides by 4% (which is 0.04): $x = \frac{23}{0.04}$

2. Perform the division: $x = 575$

So, 23 is 4% of 575.

Would you like further details or clarifications?

Here are 5 related questions to practice:

1. What is 50% of 80?
2. 45 is 15% of what number?
3. If 35 is 7% of a number, what is the number?
4. What is 6% of 150?
5. 92 is 23% of what number?

Tip: When solving percentage problems, convert the percentage into decimal form (e.g., 4% = 0.04) to make calculations easier.