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Finding the Third Proportional to 55,086 and 82,755

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Solution

The third proportional to 55,086 and 82,755 is: 124,321.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,086 : 82,755 = 82,755 : x
  2. Step 2: Convert to fraction form
    55,086/82,755 = 82,755/x
  3. Step 3: Cross multiply
    55,086x = 82,755 × 82,755
  4. Step 4: Simplify right side
    55,086x = 6,848,390,025
  5. Step 5: Solve for x
    x = 6,848,390,025/55,086
  6. Step 6: Final answer
    x = 124,321.79

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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.