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Finding the Third Proportional to 11,842 and 18,167

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Solution

The third proportional to 11,842 and 18,167 is: 27,870.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,842 : 18,167 = 18,167 : x
  2. Step 2: Convert to fraction form
    11,842/18,167 = 18,167/x
  3. Step 3: Cross multiply
    11,842x = 18,167 × 18,167
  4. Step 4: Simplify right side
    11,842x = 330,039,889
  5. Step 5: Solve for x
    x = 330,039,889/11,842
  6. Step 6: Final answer
    x = 27,870.28

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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.