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Finding the Third Proportional to 1,874 and 3,123

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Solution

The third proportional to 1,874 and 3,123 is: 5,204.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874 : 3,123 = 3,123 : x
  2. Step 2: Convert to fraction form
    1,874/3,123 = 3,123/x
  3. Step 3: Cross multiply
    1,874x = 3,123 × 3,123
  4. Step 4: Simplify right side
    1,874x = 9,753,129
  5. Step 5: Solve for x
    x = 9,753,129/1,874
  6. Step 6: Final answer
    x = 5,204.44

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.