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Finding the Fourth Proportional to 83,687.92, 125,539.84 and 27,528.49

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Solution

The fourth proportional to 83,687.92, 125,539.84 and 27,528.49 is: 41,295.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,687.92 : 125,539.84 = 27,528.49 : x
  2. Step 2: Convert to fraction form
    83,687.92/125,539.84 = 27,528.49/x
  3. Step 3: Cross multiply
    83,687.92x = 125,539.84 × 27,528.49
  4. Step 4: Simplify right side
    83,687.92x = 3,455,922,421.38
  5. Step 5: Solve for x
    x = 3,455,922,421.38/83,687.92
  6. Step 6: Final answer
    x = 41,295.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.