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Finding the Fourth Proportional to 62,489.60, 86,235.24 and 34,195.20

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Solution

The fourth proportional to 62,489.60, 86,235.24 and 34,195.20 is: 47,189.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,489.60 : 86,235.24 = 34,195.20 : x
  2. Step 2: Convert to fraction form
    62,489.60/86,235.24 = 34,195.20/x
  3. Step 3: Cross multiply
    62,489.60x = 86,235.24 × 34,195.20
  4. Step 4: Simplify right side
    62,489.60x = 2,948,831,278.85
  5. Step 5: Solve for x
    x = 2,948,831,278.85/62,489.60
  6. Step 6: Final answer
    x = 47,189.15

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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.