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Finding the Third Proportional to 5,378 and 11,759

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Solution

The third proportional to 5,378 and 11,759 is: 25,711.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378 : 11,759 = 11,759 : x
  2. Step 2: Convert to fraction form
    5,378/11,759 = 11,759/x
  3. Step 3: Cross multiply
    5,378x = 11,759 × 11,759
  4. Step 4: Simplify right side
    5,378x = 138,274,081
  5. Step 5: Solve for x
    x = 138,274,081/5,378
  6. Step 6: Final answer
    x = 25,711.06

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.