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Finding the Fourth Proportional to 67,425.82, 93,044.91 and 39,129.28

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Solution

The fourth proportional to 67,425.82, 93,044.91 and 39,129.28 is: 53,996.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,425.82 : 93,044.91 = 39,129.28 : x
  2. Step 2: Convert to fraction form
    67,425.82/93,044.91 = 39,129.28/x
  3. Step 3: Cross multiply
    67,425.82x = 93,044.91 × 39,129.28
  4. Step 4: Simplify right side
    67,425.82x = 3,640,780,335.96
  5. Step 5: Solve for x
    x = 3,640,780,335.96/67,425.82
  6. Step 6: Final answer
    x = 53,996.83

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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.