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Finding the Third Proportional to 11,438 and 17,186

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Solution

The third proportional to 11,438 and 17,186 is: 25,822.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438 : 17,186 = 17,186 : x
  2. Step 2: Convert to fraction form
    11,438/17,186 = 17,186/x
  3. Step 3: Cross multiply
    11,438x = 17,186 × 17,186
  4. Step 4: Simplify right side
    11,438x = 295,358,596
  5. Step 5: Solve for x
    x = 295,358,596/11,438
  6. Step 6: Final answer
    x = 25,822.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.