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Finding the Third Proportional to 11,984 and 18,372

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Solution

The third proportional to 11,984 and 18,372 is: 28,165.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,984 : 18,372 = 18,372 : x
  2. Step 2: Convert to fraction form
    11,984/18,372 = 18,372/x
  3. Step 3: Cross multiply
    11,984x = 18,372 × 18,372
  4. Step 4: Simplify right side
    11,984x = 337,530,384
  5. Step 5: Solve for x
    x = 337,530,384/11,984
  6. Step 6: Final answer
    x = 28,165.09

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.