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Finding the Fourth Proportional to 62,861.28, 86,750.88 and 34,569.60

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Solution

The fourth proportional to 62,861.28, 86,750.88 and 34,569.60 is: 47,707.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,861.28 : 86,750.88 = 34,569.60 : x
  2. Step 2: Convert to fraction form
    62,861.28/86,750.88 = 34,569.60/x
  3. Step 3: Cross multiply
    62,861.28x = 86,750.88 × 34,569.60
  4. Step 4: Simplify right side
    62,861.28x = 2,998,943,221.25
  5. Step 5: Solve for x
    x = 2,998,943,221.25/62,861.28
  6. Step 6: Final answer
    x = 47,707.32

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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.