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Finding the Fourth Proportional to 16.14, 24.20 and 15.92

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Solution

The fourth proportional to 16.14, 24.20 and 15.92 is: 23.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.14 : 24.20 = 15.92 : x
  2. Step 2: Convert to fraction form
    16.14/24.20 = 15.92/x
  3. Step 3: Cross multiply
    16.14x = 24.20 × 15.92
  4. Step 4: Simplify right side
    16.14x = 385.26
  5. Step 5: Solve for x
    x = 385.26/16.14
  6. Step 6: Final answer
    x = 23.87

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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.