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Finding the Third Proportional to 11,488 and 15,314

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Solution

The third proportional to 11,488 and 15,314 is: 20,414.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,488 : 15,314 = 15,314 : x
  2. Step 2: Convert to fraction form
    11,488/15,314 = 15,314/x
  3. Step 3: Cross multiply
    11,488x = 15,314 × 15,314
  4. Step 4: Simplify right side
    11,488x = 234,518,596
  5. Step 5: Solve for x
    x = 234,518,596/11,488
  6. Step 6: Final answer
    x = 20,414.22

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.