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Finding the Third Proportional to 11,992 and 16,380

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Solution

The third proportional to 11,992 and 16,380 is: 22,373.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992 : 16,380 = 16,380 : x
  2. Step 2: Convert to fraction form
    11,992/16,380 = 16,380/x
  3. Step 3: Cross multiply
    11,992x = 16,380 × 16,380
  4. Step 4: Simplify right side
    11,992x = 268,304,400
  5. Step 5: Solve for x
    x = 268,304,400/11,992
  6. Step 6: Final answer
    x = 22,373.62

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.