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Finding the Fourth Proportional to 87,906.87, 131,850.62 and 24,729

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Solution

The fourth proportional to 87,906.87, 131,850.62 and 24,729 is: 37,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,906.87 : 131,850.62 = 24,729 : x
  2. Step 2: Convert to fraction form
    87,906.87/131,850.62 = 24,729/x
  3. Step 3: Cross multiply
    87,906.87x = 131,850.62 × 24,729
  4. Step 4: Simplify right side
    87,906.87x = 3,260,533,981.98
  5. Step 5: Solve for x
    x = 3,260,533,981.98/87,906.87
  6. Step 6: Final answer
    x = 37,090.78

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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.