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Finding the Third Proportional to 12,367.50 and 18,279

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Solution

The third proportional to 12,367.50 and 18,279 is: 27,016.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,367.50 : 18,279 = 18,279 : x
  2. Step 2: Convert to fraction form
    12,367.50/18,279 = 18,279/x
  3. Step 3: Cross multiply
    12,367.50x = 18,279 × 18,279
  4. Step 4: Simplify right side
    12,367.50x = 334,121,841
  5. Step 5: Solve for x
    x = 334,121,841/12,367.50
  6. Step 6: Final answer
    x = 27,016.12

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.