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Finding the Fourth Proportional to 69,958.80, 96,540.32 and 38,127.02

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Solution

The fourth proportional to 69,958.80, 96,540.32 and 38,127.02 is: 52,613.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,958.80 : 96,540.32 = 38,127.02 : x
  2. Step 2: Convert to fraction form
    69,958.80/96,540.32 = 38,127.02/x
  3. Step 3: Cross multiply
    69,958.80x = 96,540.32 × 38,127.02
  4. Step 4: Simplify right side
    69,958.80x = 3,680,794,711.45
  5. Step 5: Solve for x
    x = 3,680,794,711.45/69,958.80
  6. Step 6: Final answer
    x = 52,613.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.