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Finding the Third Proportional to 11,226 and 12,198

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Solution

The third proportional to 11,226 and 12,198 is: 13,254.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,226 : 12,198 = 12,198 : x
  2. Step 2: Convert to fraction form
    11,226/12,198 = 12,198/x
  3. Step 3: Cross multiply
    11,226x = 12,198 × 12,198
  4. Step 4: Simplify right side
    11,226x = 148,791,204
  5. Step 5: Solve for x
    x = 148,791,204/11,226
  6. Step 6: Final answer
    x = 13,254.16

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.