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Finding the Fourth Proportional to 62,129.61, 85,724.87 and 52,098.57

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Solution

The fourth proportional to 62,129.61, 85,724.87 and 52,098.57 is: 71,884.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,129.61 : 85,724.87 = 52,098.57 : x
  2. Step 2: Convert to fraction form
    62,129.61/85,724.87 = 52,098.57/x
  3. Step 3: Cross multiply
    62,129.61x = 85,724.87 × 52,098.57
  4. Step 4: Simplify right side
    62,129.61x = 4,466,142,879.94
  5. Step 5: Solve for x
    x = 4,466,142,879.94/62,129.61
  6. Step 6: Final answer
    x = 71,884.29

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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.