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Finding the Fourth Proportional to 69,084, 95,335.92 and 39,276

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Solution

The fourth proportional to 69,084, 95,335.92 and 39,276 is: 54,200.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,084 : 95,335.92 = 39,276 : x
  2. Step 2: Convert to fraction form
    69,084/95,335.92 = 39,276/x
  3. Step 3: Cross multiply
    69,084x = 95,335.92 × 39,276
  4. Step 4: Simplify right side
    69,084x = 3,744,413,593.92
  5. Step 5: Solve for x
    x = 3,744,413,593.92/69,084
  6. Step 6: Final answer
    x = 54,200.88

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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.