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Finding the Third Proportional to 9,669 and 20,376

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Solution

The third proportional to 9,669 and 20,376 is: 42,939.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,669 : 20,376 = 20,376 : x
  2. Step 2: Convert to fraction form
    9,669/20,376 = 20,376/x
  3. Step 3: Cross multiply
    9,669x = 20,376 × 20,376
  4. Step 4: Simplify right side
    9,669x = 415,181,376
  5. Step 5: Solve for x
    x = 415,181,376/9,669
  6. Step 6: Final answer
    x = 42,939.43

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.