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Finding the Fourth Proportional to 62,665.80, 86,478.21 and 34,371.60

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Solution

The fourth proportional to 62,665.80, 86,478.21 and 34,371.60 is: 47,432.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,665.80 : 86,478.21 = 34,371.60 : x
  2. Step 2: Convert to fraction form
    62,665.80/86,478.21 = 34,371.60/x
  3. Step 3: Cross multiply
    62,665.80x = 86,478.21 × 34,371.60
  4. Step 4: Simplify right side
    62,665.80x = 2,972,394,442.84
  5. Step 5: Solve for x
    x = 2,972,394,442.84/62,665.80
  6. Step 6: Final answer
    x = 47,432.48

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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.