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Finding the Fourth Proportional to 53,591.62, 80,388.11 and 36,947.20

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Solution

The fourth proportional to 53,591.62, 80,388.11 and 36,947.20 is: 55,421.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,591.62 : 80,388.11 = 36,947.20 : x
  2. Step 2: Convert to fraction form
    53,591.62/80,388.11 = 36,947.20/x
  3. Step 3: Cross multiply
    53,591.62x = 80,388.11 × 36,947.20
  4. Step 4: Simplify right side
    53,591.62x = 2,970,115,577.79
  5. Step 5: Solve for x
    x = 2,970,115,577.79/53,591.62
  6. Step 6: Final answer
    x = 55,421.27

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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.