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Finding the Fourth Proportional to 16.38, 24.57 and 7.36

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Solution

The fourth proportional to 16.38, 24.57 and 7.36 is: 11.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.38 : 24.57 = 7.36 : x
  2. Step 2: Convert to fraction form
    16.38/24.57 = 7.36/x
  3. Step 3: Cross multiply
    16.38x = 24.57 × 7.36
  4. Step 4: Simplify right side
    16.38x = 180.84
  5. Step 5: Solve for x
    x = 180.84/16.38
  6. Step 6: Final answer
    x = 11.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.