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Finding the Fourth Proportional to 14.92, 22.39 and 11.17

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Solution

The fourth proportional to 14.92, 22.39 and 11.17 is: 16.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.92 : 22.39 = 11.17 : x
  2. Step 2: Convert to fraction form
    14.92/22.39 = 11.17/x
  3. Step 3: Cross multiply
    14.92x = 22.39 × 11.17
  4. Step 4: Simplify right side
    14.92x = 250.10
  5. Step 5: Solve for x
    x = 250.10/14.92
  6. Step 6: Final answer
    x = 16.76

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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.