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Finding the Third Proportional to 13,694 and 19,399

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Solution

The third proportional to 13,694 and 19,399 is: 27,480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694 : 19,399 = 19,399 : x
  2. Step 2: Convert to fraction form
    13,694/19,399 = 19,399/x
  3. Step 3: Cross multiply
    13,694x = 19,399 × 19,399
  4. Step 4: Simplify right side
    13,694x = 376,321,201
  5. Step 5: Solve for x
    x = 376,321,201/13,694
  6. Step 6: Final answer
    x = 27,480.74

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.