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Finding the Third Proportional to 51,481 and 82,217.50

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Solution

The third proportional to 51,481 and 82,217.50 is: 131,305.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,481 : 82,217.50 = 82,217.50 : x
  2. Step 2: Convert to fraction form
    51,481/82,217.50 = 82,217.50/x
  3. Step 3: Cross multiply
    51,481x = 82,217.50 × 82,217.50
  4. Step 4: Simplify right side
    51,481x = 6,759,717,306.25
  5. Step 5: Solve for x
    x = 6,759,717,306.25/51,481
  6. Step 6: Final answer
    x = 131,305.09

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.