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Finding the Third Proportional to 7,279 and 15,651

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Solution

The third proportional to 7,279 and 15,651 is: 33,652.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279 : 15,651 = 15,651 : x
  2. Step 2: Convert to fraction form
    7,279/15,651 = 15,651/x
  3. Step 3: Cross multiply
    7,279x = 15,651 × 15,651
  4. Step 4: Simplify right side
    7,279x = 244,953,801
  5. Step 5: Solve for x
    x = 244,953,801/7,279
  6. Step 6: Final answer
    x = 33,652.12

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.