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Finding the Third Proportional to 12,476 and 16,689

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Solution

The third proportional to 12,476 and 16,689 is: 22,324.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476 : 16,689 = 16,689 : x
  2. Step 2: Convert to fraction form
    12,476/16,689 = 16,689/x
  3. Step 3: Cross multiply
    12,476x = 16,689 × 16,689
  4. Step 4: Simplify right side
    12,476x = 278,522,721
  5. Step 5: Solve for x
    x = 278,522,721/12,476
  6. Step 6: Final answer
    x = 22,324.68

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.