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Finding the Fourth Proportional to 39,149.17, 54,025.11 and 22,153.11

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Solution

The fourth proportional to 39,149.17, 54,025.11 and 22,153.11 is: 30,570.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,149.17 : 54,025.11 = 22,153.11 : x
  2. Step 2: Convert to fraction form
    39,149.17/54,025.11 = 22,153.11/x
  3. Step 3: Cross multiply
    39,149.17x = 54,025.11 × 22,153.11
  4. Step 4: Simplify right side
    39,149.17x = 1,196,823,823.70
  5. Step 5: Solve for x
    x = 1,196,823,823.70/39,149.17
  6. Step 6: Final answer
    x = 30,570.86

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Double scale
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Similar ratio
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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.