Step 1: Understand the given information

The given information states that we need to convert 30 inches to centimeters. This means we need to find the equivalent value of 30 inches in centimeters.

Step 2: Know the conversion factor

To convert inches to centimeters, we need to use the conversion factor 2.54. This means that 1 inch is equal to 2.54 centimeters.

Step 3: Set up the conversion

Now that we have the conversion factor, we can set up the conversion in the form of a proportion. This can be written as 1 inch/2.54 centimeters = 30 inches/x centimeters, where x represents the unknown value we are trying to find.

Step 4: Cross-multiply

To solve for x, we need to cross-multiply. This means that we multiply 1 inch with x and 2.54 centimeters with 30 inches. The equation now looks like this: 1x = 2.54 * 30.

Step 5: Simplify

We can simplify the equation by multiplying 2.54 and 30. This gives us 76.2 centimeters as the equivalent value of 30 inches in centimeters.

Step 6: Write the answer

Now that we have the equivalent value, we can write the answer in the form of a statement. 30 inches is equal to 76.2 centimeters.

Therefore, 30 inches = 76.2 cm.