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Finding the Fourth Proportional to 16.39, 24.60 and 14.73

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Solution

The fourth proportional to 16.39, 24.60 and 14.73 is: 22.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.39 : 24.60 = 14.73 : x
  2. Step 2: Convert to fraction form
    16.39/24.60 = 14.73/x
  3. Step 3: Cross multiply
    16.39x = 24.60 × 14.73
  4. Step 4: Simplify right side
    16.39x = 362.46
  5. Step 5: Solve for x
    x = 362.46/16.39
  6. Step 6: Final answer
    x = 22.12

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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.