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Finding the Third Proportional to 12,549 and 16,660

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Solution

The third proportional to 12,549 and 16,660 is: 22,117.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549 : 16,660 = 16,660 : x
  2. Step 2: Convert to fraction form
    12,549/16,660 = 16,660/x
  3. Step 3: Cross multiply
    12,549x = 16,660 × 16,660
  4. Step 4: Simplify right side
    12,549x = 277,555,600
  5. Step 5: Solve for x
    x = 277,555,600/12,549
  6. Step 6: Final answer
    x = 22,117.75

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.