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Finding the Third Proportional to 27,876 and 43,191

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Solution

The third proportional to 27,876 and 43,191 is: 66,920.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,876 : 43,191 = 43,191 : x
  2. Step 2: Convert to fraction form
    27,876/43,191 = 43,191/x
  3. Step 3: Cross multiply
    27,876x = 43,191 × 43,191
  4. Step 4: Simplify right side
    27,876x = 1,865,462,481
  5. Step 5: Solve for x
    x = 1,865,462,481/27,876
  6. Step 6: Final answer
    x = 66,920.02

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.