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Finding the Third Proportional to 51,872 and 105,649

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Solution

The third proportional to 51,872 and 105,649 is: 215,177.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,872 : 105,649 = 105,649 : x
  2. Step 2: Convert to fraction form
    51,872/105,649 = 105,649/x
  3. Step 3: Cross multiply
    51,872x = 105,649 × 105,649
  4. Step 4: Simplify right side
    51,872x = 11,161,711,201
  5. Step 5: Solve for x
    x = 11,161,711,201/51,872
  6. Step 6: Final answer
    x = 215,177.96

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.