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Finding the Fourth Proportional to 22,115.92, 30,520.17 and 12,044.41

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Solution

The fourth proportional to 22,115.92, 30,520.17 and 12,044.41 is: 16,621.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,115.92 : 30,520.17 = 12,044.41 : x
  2. Step 2: Convert to fraction form
    22,115.92/30,520.17 = 12,044.41/x
  3. Step 3: Cross multiply
    22,115.92x = 30,520.17 × 12,044.41
  4. Step 4: Simplify right side
    22,115.92x = 367,597,227.93
  5. Step 5: Solve for x
    x = 367,597,227.93/22,115.92
  6. Step 6: Final answer
    x = 16,621.39

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Half scale
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Double scale
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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.