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Finding the Third Proportional to 57,087.75 and 122,592

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Solution

The third proportional to 57,087.75 and 122,592 is: 263,257.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,087.75 : 122,592 = 122,592 : x
  2. Step 2: Convert to fraction form
    57,087.75/122,592 = 122,592/x
  3. Step 3: Cross multiply
    57,087.75x = 122,592 × 122,592
  4. Step 4: Simplify right side
    57,087.75x = 15,028,798,464
  5. Step 5: Solve for x
    x = 15,028,798,464/57,087.75
  6. Step 6: Final answer
    x = 263,257.85

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.