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Finding the Third Proportional to 2,682 and 4,123

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Solution

The third proportional to 2,682 and 4,123 is: 6,338.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682 : 4,123 = 4,123 : x
  2. Step 2: Convert to fraction form
    2,682/4,123 = 4,123/x
  3. Step 3: Cross multiply
    2,682x = 4,123 × 4,123
  4. Step 4: Simplify right side
    2,682x = 16,999,129
  5. Step 5: Solve for x
    x = 16,999,129/2,682
  6. Step 6: Final answer
    x = 6,338.23

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.