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Finding the Third Proportional to 2,642 and 6,941

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Solution

The third proportional to 2,642 and 6,941 is: 18,235.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642 : 6,941 = 6,941 : x
  2. Step 2: Convert to fraction form
    2,642/6,941 = 6,941/x
  3. Step 3: Cross multiply
    2,642x = 6,941 × 6,941
  4. Step 4: Simplify right side
    2,642x = 48,177,481
  5. Step 5: Solve for x
    x = 48,177,481/2,642
  6. Step 6: Final answer
    x = 18,235.23

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Why These Related Problems?

These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.