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Finding the Third Proportional to 1,692 and 3,696

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Solution

The third proportional to 1,692 and 3,696 is: 8,073.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692 : 3,696 = 3,696 : x
  2. Step 2: Convert to fraction form
    1,692/3,696 = 3,696/x
  3. Step 3: Cross multiply
    1,692x = 3,696 × 3,696
  4. Step 4: Simplify right side
    1,692x = 13,660,416
  5. Step 5: Solve for x
    x = 13,660,416/1,692
  6. Step 6: Final answer
    x = 8,073.53

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.