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Finding the Fourth Proportional to 62,610.87, 86,414.10 and 47,478.02

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Solution

The fourth proportional to 62,610.87, 86,414.10 and 47,478.02 is: 65,528.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,610.87 : 86,414.10 = 47,478.02 : x
  2. Step 2: Convert to fraction form
    62,610.87/86,414.10 = 47,478.02/x
  3. Step 3: Cross multiply
    62,610.87x = 86,414.10 × 47,478.02
  4. Step 4: Simplify right side
    62,610.87x = 4,102,769,698.62
  5. Step 5: Solve for x
    x = 4,102,769,698.62/62,610.87
  6. Step 6: Final answer
    x = 65,528.07

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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.