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Finding the Third Proportional to 54,087.75 and 80,682.75

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Solution

The third proportional to 54,087.75 and 80,682.75 is: 120,354.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,087.75 : 80,682.75 = 80,682.75 : x
  2. Step 2: Convert to fraction form
    54,087.75/80,682.75 = 80,682.75/x
  3. Step 3: Cross multiply
    54,087.75x = 80,682.75 × 80,682.75
  4. Step 4: Simplify right side
    54,087.75x = 6,509,706,147.56
  5. Step 5: Solve for x
    x = 6,509,706,147.56/54,087.75
  6. Step 6: Final answer
    x = 120,354.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.