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Finding the Fourth Proportional to 68,909.60, 95,094.47 and 38,694.24

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Solution

The fourth proportional to 68,909.60, 95,094.47 and 38,694.24 is: 53,397.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,909.60 : 95,094.47 = 38,694.24 : x
  2. Step 2: Convert to fraction form
    68,909.60/95,094.47 = 38,694.24/x
  3. Step 3: Cross multiply
    68,909.60x = 95,094.47 × 38,694.24
  4. Step 4: Simplify right side
    68,909.60x = 3,679,608,341.59
  5. Step 5: Solve for x
    x = 3,679,608,341.59/68,909.60
  6. Step 6: Final answer
    x = 53,397.61

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1.5x scale

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.