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Finding the Fourth Proportional to 67,892.80, 93,670.56 and 39,592.96

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Solution

The fourth proportional to 67,892.80, 93,670.56 and 39,592.96 is: 54,625.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,892.80 : 93,670.56 = 39,592.96 : x
  2. Step 2: Convert to fraction form
    67,892.80/93,670.56 = 39,592.96/x
  3. Step 3: Cross multiply
    67,892.80x = 93,670.56 × 39,592.96
  4. Step 4: Simplify right side
    67,892.80x = 3,708,694,735.26
  5. Step 5: Solve for x
    x = 3,708,694,735.26/67,892.80
  6. Step 6: Final answer
    x = 54,625.74

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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.