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Finding the Fourth Proportional to 62,481.92, 86,221.44 and 34,188.16

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Solution

The fourth proportional to 62,481.92, 86,221.44 and 34,188.16 is: 47,177.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,481.92 : 86,221.44 = 34,188.16 : x
  2. Step 2: Convert to fraction form
    62,481.92/86,221.44 = 34,188.16/x
  3. Step 3: Cross multiply
    62,481.92x = 86,221.44 × 34,188.16
  4. Step 4: Simplify right side
    62,481.92x = 2,947,752,386.15
  5. Step 5: Solve for x
    x = 2,947,752,386.15/62,481.92
  6. Step 6: Final answer
    x = 47,177.69

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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.