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Finding the Third Proportional to 2,761 and 4,154

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Solution

The third proportional to 2,761 and 4,154 is: 6,249.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761 : 4,154 = 4,154 : x
  2. Step 2: Convert to fraction form
    2,761/4,154 = 4,154/x
  3. Step 3: Cross multiply
    2,761x = 4,154 × 4,154
  4. Step 4: Simplify right side
    2,761x = 17,255,716
  5. Step 5: Solve for x
    x = 17,255,716/2,761
  6. Step 6: Final answer
    x = 6,249.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.