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Finding the Fourth Proportional to 62,493, 86,135.45 and 47,380.83

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Solution

The fourth proportional to 62,493, 86,135.45 and 47,380.83 is: 65,306.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,493 : 86,135.45 = 47,380.83 : x
  2. Step 2: Convert to fraction form
    62,493/86,135.45 = 47,380.83/x
  3. Step 3: Cross multiply
    62,493x = 86,135.45 × 47,380.83
  4. Step 4: Simplify right side
    62,493x = 4,081,168,876.52
  5. Step 5: Solve for x
    x = 4,081,168,876.52/62,493
  6. Step 6: Final answer
    x = 65,306.02

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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.