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Finding the Fourth Proportional to 75,487.61, 113,247.52 and 25,565.96

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Solution

The fourth proportional to 75,487.61, 113,247.52 and 25,565.96 is: 38,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,487.61 : 113,247.52 = 25,565.96 : x
  2. Step 2: Convert to fraction form
    75,487.61/113,247.52 = 25,565.96/x
  3. Step 3: Cross multiply
    75,487.61x = 113,247.52 × 25,565.96
  4. Step 4: Simplify right side
    75,487.61x = 2,895,281,785.62
  5. Step 5: Solve for x
    x = 2,895,281,785.62/75,487.61
  6. Step 6: Final answer
    x = 38,354.40

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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.