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Finding the Third Proportional to 15,809 and 34,534

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Solution

The third proportional to 15,809 and 34,534 is: 75,437.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,809 : 34,534 = 34,534 : x
  2. Step 2: Convert to fraction form
    15,809/34,534 = 34,534/x
  3. Step 3: Cross multiply
    15,809x = 34,534 × 34,534
  4. Step 4: Simplify right side
    15,809x = 1,192,597,156
  5. Step 5: Solve for x
    x = 1,192,597,156/15,809
  6. Step 6: Final answer
    x = 75,437.86

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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.