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Finding the Third Proportional to 681 and 1,096

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Solution

The third proportional to 681 and 1,096 is: 1,763.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    681 : 1,096 = 1,096 : x
  2. Step 2: Convert to fraction form
    681/1,096 = 1,096/x
  3. Step 3: Cross multiply
    681x = 1,096 × 1,096
  4. Step 4: Simplify right side
    681x = 1,201,216
  5. Step 5: Solve for x
    x = 1,201,216/681
  6. Step 6: Final answer
    x = 1,763.90

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.