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Finding the Fourth Proportional to 53,612.30, 73,983.21 and 32,387.87

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Solution

The fourth proportional to 53,612.30, 73,983.21 and 32,387.87 is: 44,694.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,612.30 : 73,983.21 = 32,387.87 : x
  2. Step 2: Convert to fraction form
    53,612.30/73,983.21 = 32,387.87/x
  3. Step 3: Cross multiply
    53,612.30x = 73,983.21 × 32,387.87
  4. Step 4: Simplify right side
    53,612.30x = 2,396,158,217.75
  5. Step 5: Solve for x
    x = 2,396,158,217.75/53,612.30
  6. Step 6: Final answer
    x = 44,694.19

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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.