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Finding the Third Proportional to 39,861.75 and 54,159.75

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Solution

The third proportional to 39,861.75 and 54,159.75 is: 73,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,861.75 : 54,159.75 = 54,159.75 : x
  2. Step 2: Convert to fraction form
    39,861.75/54,159.75 = 54,159.75/x
  3. Step 3: Cross multiply
    39,861.75x = 54,159.75 × 54,159.75
  4. Step 4: Simplify right side
    39,861.75x = 2,933,278,520.06
  5. Step 5: Solve for x
    x = 2,933,278,520.06/39,861.75
  6. Step 6: Final answer
    x = 73,586.30

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.