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Finding the Third Proportional to 2,648 and 4,042

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Solution

The third proportional to 2,648 and 4,042 is: 6,169.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648 : 4,042 = 4,042 : x
  2. Step 2: Convert to fraction form
    2,648/4,042 = 4,042/x
  3. Step 3: Cross multiply
    2,648x = 4,042 × 4,042
  4. Step 4: Simplify right side
    2,648x = 16,337,764
  5. Step 5: Solve for x
    x = 16,337,764/2,648
  6. Step 6: Final answer
    x = 6,169.85

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.