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Finding the Third Proportional to 54,600.75 and 82,080

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Solution

The third proportional to 54,600.75 and 82,080 is: 123,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,600.75 : 82,080 = 82,080 : x
  2. Step 2: Convert to fraction form
    54,600.75/82,080 = 82,080/x
  3. Step 3: Cross multiply
    54,600.75x = 82,080 × 82,080
  4. Step 4: Simplify right side
    54,600.75x = 6,737,126,400
  5. Step 5: Solve for x
    x = 6,737,126,400/54,600.75
  6. Step 6: Final answer
    x = 123,388.90

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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.