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Finding the Third Proportional to 2,934 and 6,120

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Solution

The third proportional to 2,934 and 6,120 is: 12,765.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,934 : 6,120 = 6,120 : x
  2. Step 2: Convert to fraction form
    2,934/6,120 = 6,120/x
  3. Step 3: Cross multiply
    2,934x = 6,120 × 6,120
  4. Step 4: Simplify right side
    2,934x = 37,454,400
  5. Step 5: Solve for x
    x = 37,454,400/2,934
  6. Step 6: Final answer
    x = 12,765.64

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.