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Finding the Fourth Proportional to 16,251.32, 24,371.94 and 6,387.92

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Solution

The fourth proportional to 16,251.32, 24,371.94 and 6,387.92 is: 9,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,251.32 : 24,371.94 = 6,387.92 : x
  2. Step 2: Convert to fraction form
    16,251.32/24,371.94 = 6,387.92/x
  3. Step 3: Cross multiply
    16,251.32x = 24,371.94 × 6,387.92
  4. Step 4: Simplify right side
    16,251.32x = 155,686,002.96
  5. Step 5: Solve for x
    x = 155,686,002.96/16,251.32
  6. Step 6: Final answer
    x = 9,579.90

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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.