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Finding the Third Proportional to 5,415 and 11,694

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Solution

The third proportional to 5,415 and 11,694 is: 25,253.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415 : 11,694 = 11,694 : x
  2. Step 2: Convert to fraction form
    5,415/11,694 = 11,694/x
  3. Step 3: Cross multiply
    5,415x = 11,694 × 11,694
  4. Step 4: Simplify right side
    5,415x = 136,749,636
  5. Step 5: Solve for x
    x = 136,749,636/5,415
  6. Step 6: Final answer
    x = 25,253.86

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.