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Finding the Third Proportional to 11,181 and 14,781

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Solution

The third proportional to 11,181 and 14,781 is: 19,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181 : 14,781 = 14,781 : x
  2. Step 2: Convert to fraction form
    11,181/14,781 = 14,781/x
  3. Step 3: Cross multiply
    11,181x = 14,781 × 14,781
  4. Step 4: Simplify right side
    11,181x = 218,477,961
  5. Step 5: Solve for x
    x = 218,477,961/11,181
  6. Step 6: Final answer
    x = 19,540.11

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.