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Finding the Third Proportional to 1,682 and 3,692

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Solution

The third proportional to 1,682 and 3,692 is: 8,103.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682 : 3,692 = 3,692 : x
  2. Step 2: Convert to fraction form
    1,682/3,692 = 3,692/x
  3. Step 3: Cross multiply
    1,682x = 3,692 × 3,692
  4. Step 4: Simplify right side
    1,682x = 13,630,864
  5. Step 5: Solve for x
    x = 13,630,864/1,682
  6. Step 6: Final answer
    x = 8,103.96

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.