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Finding the Third Proportional to 7,198 and 12,174

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Solution

The third proportional to 7,198 and 12,174 is: 20,589.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198 : 12,174 = 12,174 : x
  2. Step 2: Convert to fraction form
    7,198/12,174 = 12,174/x
  3. Step 3: Cross multiply
    7,198x = 12,174 × 12,174
  4. Step 4: Simplify right side
    7,198x = 148,206,276
  5. Step 5: Solve for x
    x = 148,206,276/7,198
  6. Step 6: Final answer
    x = 20,589.92

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Why These Related Problems?

These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.