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Finding the Third Proportional to 5,728 and 12,112

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Solution

The third proportional to 5,728 and 12,112 is: 25,611.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728 : 12,112 = 12,112 : x
  2. Step 2: Convert to fraction form
    5,728/12,112 = 12,112/x
  3. Step 3: Cross multiply
    5,728x = 12,112 × 12,112
  4. Step 4: Simplify right side
    5,728x = 146,700,544
  5. Step 5: Solve for x
    x = 146,700,544/5,728
  6. Step 6: Final answer
    x = 25,611.13

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.