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To convert 72.381% into a recurring decimal using dot notation:

1. First, express the percentage as a decimal by dividing by 100:
   \[
   72.381\% = \frac{72.381}{100} = 0.72381
   \]

2. The decimal part, 0.72381, has a recurring section. In this case, it looks like "81" is repeating.

So, the recurring decimal using dot notation would be:
\[
0.723\dot{81}
\]

This means 81 repeats indefinitely.

Would you like more details, or do you have any further questions?

### Follow-up Questions:
1. What is the method to convert a fraction into a recurring decimal?
2. How do you handle decimals where more than two digits repeat?
3. Can percentages always be written as recurring decimals?
4. What is the significance of dot notation in mathematics?
5. How would this process differ if there were no recurring part in the decimal?

**Tip:** Always check which digits repeat in a decimal by expanding it to more places if unsure.

Write 72.381% as a recurring decimal using dot notation.

Learn how to convert 72.381% into a recurring decimal using dot notation. This problem covers percentage-to-decimal conversion and recurring decimals. Suitable for students in Grades 6-8.

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