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Finding the Fourth Proportional to 65,911.20, 98,932.42 and 36,342.96

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Solution

The fourth proportional to 65,911.20, 98,932.42 and 36,342.96 is: 54,550.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,911.20 : 98,932.42 = 36,342.96 : x
  2. Step 2: Convert to fraction form
    65,911.20/98,932.42 = 36,342.96/x
  3. Step 3: Cross multiply
    65,911.20x = 98,932.42 × 36,342.96
  4. Step 4: Simplify right side
    65,911.20x = 3,595,496,891.91
  5. Step 5: Solve for x
    x = 3,595,496,891.91/65,911.20
  6. Step 6: Final answer
    x = 54,550.62

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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.