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Finding the Third Proportional to 8,578 and 18,604

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Solution

The third proportional to 8,578 and 18,604 is: 40,348.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578 : 18,604 = 18,604 : x
  2. Step 2: Convert to fraction form
    8,578/18,604 = 18,604/x
  3. Step 3: Cross multiply
    8,578x = 18,604 × 18,604
  4. Step 4: Simplify right side
    8,578x = 346,108,816
  5. Step 5: Solve for x
    x = 346,108,816/8,578
  6. Step 6: Final answer
    x = 40,348.43

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.