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Finding the Fourth Proportional to 67,351.92, 92,927.42 and 38,279.88

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Solution

The fourth proportional to 67,351.92, 92,927.42 and 38,279.88 is: 52,815.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,351.92 : 92,927.42 = 38,279.88 : x
  2. Step 2: Convert to fraction form
    67,351.92/92,927.42 = 38,279.88/x
  3. Step 3: Cross multiply
    67,351.92x = 92,927.42 × 38,279.88
  4. Step 4: Simplify right side
    67,351.92x = 3,557,250,486.31
  5. Step 5: Solve for x
    x = 3,557,250,486.31/67,351.92
  6. Step 6: Final answer
    x = 52,815.87

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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.