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Finding the Third Proportional to 11,816 and 27,876

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Solution

The third proportional to 11,816 and 27,876 is: 65,764.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816 : 27,876 = 27,876 : x
  2. Step 2: Convert to fraction form
    11,816/27,876 = 27,876/x
  3. Step 3: Cross multiply
    11,816x = 27,876 × 27,876
  4. Step 4: Simplify right side
    11,816x = 777,071,376
  5. Step 5: Solve for x
    x = 777,071,376/11,816
  6. Step 6: Final answer
    x = 65,764.33

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.