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Finding the Third Proportional to 11,555 and 18,367

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Solution

The third proportional to 11,555 and 18,367 is: 29,194.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,555 : 18,367 = 18,367 : x
  2. Step 2: Convert to fraction form
    11,555/18,367 = 18,367/x
  3. Step 3: Cross multiply
    11,555x = 18,367 × 18,367
  4. Step 4: Simplify right side
    11,555x = 337,346,689
  5. Step 5: Solve for x
    x = 337,346,689/11,555
  6. Step 6: Final answer
    x = 29,194.87

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.