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Finding the Fourth Proportional to 16.24, 24.14 and 15.38

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Solution

The fourth proportional to 16.24, 24.14 and 15.38 is: 22.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.24 : 24.14 = 15.38 : x
  2. Step 2: Convert to fraction form
    16.24/24.14 = 15.38/x
  3. Step 3: Cross multiply
    16.24x = 24.14 × 15.38
  4. Step 4: Simplify right side
    16.24x = 371.27
  5. Step 5: Solve for x
    x = 371.27/16.24
  6. Step 6: Final answer
    x = 22.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.