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Finding the Third Proportional to 7,976 and 17,387

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Solution

The third proportional to 7,976 and 17,387 is: 37,902.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976 : 17,387 = 17,387 : x
  2. Step 2: Convert to fraction form
    7,976/17,387 = 17,387/x
  3. Step 3: Cross multiply
    7,976x = 17,387 × 17,387
  4. Step 4: Simplify right side
    7,976x = 302,307,769
  5. Step 5: Solve for x
    x = 302,307,769/7,976
  6. Step 6: Final answer
    x = 37,902.18

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.