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Finding the Third Proportional to 54,921.75 and 87,910.13

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Solution

The third proportional to 54,921.75 and 87,910.13 is: 140,712.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,921.75 : 87,910.13 = 87,910.13 : x
  2. Step 2: Convert to fraction form
    54,921.75/87,910.13 = 87,910.13/x
  3. Step 3: Cross multiply
    54,921.75x = 87,910.13 × 87,910.13
  4. Step 4: Simplify right side
    54,921.75x = 7,728,190,077.52
  5. Step 5: Solve for x
    x = 7,728,190,077.52/54,921.75
  6. Step 6: Final answer
    x = 140,712.74

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.