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Finding the Third Proportional to 12,781.13 and 26,736.75

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Solution

The third proportional to 12,781.13 and 26,736.75 is: 55,930.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.13 : 26,736.75 = 26,736.75 : x
  2. Step 2: Convert to fraction form
    12,781.13/26,736.75 = 26,736.75/x
  3. Step 3: Cross multiply
    12,781.13x = 26,736.75 × 26,736.75
  4. Step 4: Simplify right side
    12,781.13x = 714,853,800.56
  5. Step 5: Solve for x
    x = 714,853,800.56/12,781.13
  6. Step 6: Final answer
    x = 55,930.43

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.