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Finding the Third Proportional to 15,578 and 34,612

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Solution

The third proportional to 15,578 and 34,612 is: 76,902.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,578 : 34,612 = 34,612 : x
  2. Step 2: Convert to fraction form
    15,578/34,612 = 34,612/x
  3. Step 3: Cross multiply
    15,578x = 34,612 × 34,612
  4. Step 4: Simplify right side
    15,578x = 1,197,990,544
  5. Step 5: Solve for x
    x = 1,197,990,544/15,578
  6. Step 6: Final answer
    x = 76,902.72

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.