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Finding the Third Proportional to 3,692 and 8,080

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Solution

The third proportional to 3,692 and 8,080 is: 17,683.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,692 : 8,080 = 8,080 : x
  2. Step 2: Convert to fraction form
    3,692/8,080 = 8,080/x
  3. Step 3: Cross multiply
    3,692x = 8,080 × 8,080
  4. Step 4: Simplify right side
    3,692x = 65,286,400
  5. Step 5: Solve for x
    x = 65,286,400/3,692
  6. Step 6: Final answer
    x = 17,683.21

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.