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Finding the Third Proportional to 51,073.50 and 79,266

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Solution

The third proportional to 51,073.50 and 79,266 is: 123,020.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,073.50 : 79,266 = 79,266 : x
  2. Step 2: Convert to fraction form
    51,073.50/79,266 = 79,266/x
  3. Step 3: Cross multiply
    51,073.50x = 79,266 × 79,266
  4. Step 4: Simplify right side
    51,073.50x = 6,283,098,756
  5. Step 5: Solve for x
    x = 6,283,098,756/51,073.50
  6. Step 6: Final answer
    x = 123,020.72

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.