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Finding the Fourth Proportional to 16.38, 24.51 and 16.11

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Solution

The fourth proportional to 16.38, 24.51 and 16.11 is: 24.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.38 : 24.51 = 16.11 : x
  2. Step 2: Convert to fraction form
    16.38/24.51 = 16.11/x
  3. Step 3: Cross multiply
    16.38x = 24.51 × 16.11
  4. Step 4: Simplify right side
    16.38x = 394.86
  5. Step 5: Solve for x
    x = 394.86/16.38
  6. Step 6: Final answer
    x = 24.11

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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.