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Finding the Third Proportional to 2,269 and 3,213.75

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Solution

The third proportional to 2,269 and 3,213.75 is: 4,551.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269 : 3,213.75 = 3,213.75 : x
  2. Step 2: Convert to fraction form
    2,269/3,213.75 = 3,213.75/x
  3. Step 3: Cross multiply
    2,269x = 3,213.75 × 3,213.75
  4. Step 4: Simplify right side
    2,269x = 10,328,189.06
  5. Step 5: Solve for x
    x = 10,328,189.06/2,269
  6. Step 6: Final answer
    x = 4,551.87

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.