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Finding the Fourth Proportional to 71,512.92, 107,227.85 and 27,115.46

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Solution

The fourth proportional to 71,512.92, 107,227.85 and 27,115.46 is: 40,657.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,512.92 : 107,227.85 = 27,115.46 : x
  2. Step 2: Convert to fraction form
    71,512.92/107,227.85 = 27,115.46/x
  3. Step 3: Cross multiply
    71,512.92x = 107,227.85 × 27,115.46
  4. Step 4: Simplify right side
    71,512.92x = 2,907,531,805.84
  5. Step 5: Solve for x
    x = 2,907,531,805.84/71,512.92
  6. Step 6: Final answer
    x = 40,657.43

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1.5x scale

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.