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Finding the Third Proportional to 3,138 and 6,100

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Solution

The third proportional to 3,138 and 6,100 is: 11,857.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138 : 6,100 = 6,100 : x
  2. Step 2: Convert to fraction form
    3,138/6,100 = 6,100/x
  3. Step 3: Cross multiply
    3,138x = 6,100 × 6,100
  4. Step 4: Simplify right side
    3,138x = 37,210,000
  5. Step 5: Solve for x
    x = 37,210,000/3,138
  6. Step 6: Final answer
    x = 11,857.87

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Why These Related Problems?

These problems maintain the same ratio (1.94) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.