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Finding the Third Proportional to 3,932 and 7,084

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Solution

The third proportional to 3,932 and 7,084 is: 12,762.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932 : 7,084 = 7,084 : x
  2. Step 2: Convert to fraction form
    3,932/7,084 = 7,084/x
  3. Step 3: Cross multiply
    3,932x = 7,084 × 7,084
  4. Step 4: Simplify right side
    3,932x = 50,183,056
  5. Step 5: Solve for x
    x = 50,183,056/3,932
  6. Step 6: Final answer
    x = 12,762.73

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.