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Finding the Third Proportional to 61,601 and 68,082

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Solution

The third proportional to 61,601 and 68,082 is: 75,244.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,601 : 68,082 = 68,082 : x
  2. Step 2: Convert to fraction form
    61,601/68,082 = 68,082/x
  3. Step 3: Cross multiply
    61,601x = 68,082 × 68,082
  4. Step 4: Simplify right side
    61,601x = 4,635,158,724
  5. Step 5: Solve for x
    x = 4,635,158,724/61,601
  6. Step 6: Final answer
    x = 75,244.86

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.