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Finding the Third Proportional to 2,198 and 4,742

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Solution

The third proportional to 2,198 and 4,742 is: 10,230.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198 : 4,742 = 4,742 : x
  2. Step 2: Convert to fraction form
    2,198/4,742 = 4,742/x
  3. Step 3: Cross multiply
    2,198x = 4,742 × 4,742
  4. Step 4: Simplify right side
    2,198x = 22,486,564
  5. Step 5: Solve for x
    x = 22,486,564/2,198
  6. Step 6: Final answer
    x = 10,230.47

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.