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Finding the Third Proportional to 5,198 and 8,079

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Solution

The third proportional to 5,198 and 8,079 is: 12,556.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198 : 8,079 = 8,079 : x
  2. Step 2: Convert to fraction form
    5,198/8,079 = 8,079/x
  3. Step 3: Cross multiply
    5,198x = 8,079 × 8,079
  4. Step 4: Simplify right side
    5,198x = 65,270,241
  5. Step 5: Solve for x
    x = 65,270,241/5,198
  6. Step 6: Final answer
    x = 12,556.80

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.