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Finding the Third Proportional to 8,558 and 17,638

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Solution

The third proportional to 8,558 and 17,638 is: 36,351.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558 : 17,638 = 17,638 : x
  2. Step 2: Convert to fraction form
    8,558/17,638 = 17,638/x
  3. Step 3: Cross multiply
    8,558x = 17,638 × 17,638
  4. Step 4: Simplify right side
    8,558x = 311,099,044
  5. Step 5: Solve for x
    x = 311,099,044/8,558
  6. Step 6: Final answer
    x = 36,351.84

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.