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Finding the Third Proportional to 13,876 and 18,648

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Solution

The third proportional to 13,876 and 18,648 is: 25,061.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876 : 18,648 = 18,648 : x
  2. Step 2: Convert to fraction form
    13,876/18,648 = 18,648/x
  3. Step 3: Cross multiply
    13,876x = 18,648 × 18,648
  4. Step 4: Simplify right side
    13,876x = 347,747,904
  5. Step 5: Solve for x
    x = 347,747,904/13,876
  6. Step 6: Final answer
    x = 25,061.11

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.