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Finding the Third Proportional to 4,689 and 8,694

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Solution

The third proportional to 4,689 and 8,694 is: 16,119.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689 : 8,694 = 8,694 : x
  2. Step 2: Convert to fraction form
    4,689/8,694 = 8,694/x
  3. Step 3: Cross multiply
    4,689x = 8,694 × 8,694
  4. Step 4: Simplify right side
    4,689x = 75,585,636
  5. Step 5: Solve for x
    x = 75,585,636/4,689
  6. Step 6: Final answer
    x = 16,119.78

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.