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Finding the Third Proportional to 3,712 and 4,084

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Solution

The third proportional to 3,712 and 4,084 is: 4,493.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712 : 4,084 = 4,084 : x
  2. Step 2: Convert to fraction form
    3,712/4,084 = 4,084/x
  3. Step 3: Cross multiply
    3,712x = 4,084 × 4,084
  4. Step 4: Simplify right side
    3,712x = 16,679,056
  5. Step 5: Solve for x
    x = 16,679,056/3,712
  6. Step 6: Final answer
    x = 4,493.28

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.