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Finding the Third Proportional to 2,874.50 and 6,287.25

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Solution

The third proportional to 2,874.50 and 6,287.25 is: 13,751.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.50 : 6,287.25 = 6,287.25 : x
  2. Step 2: Convert to fraction form
    2,874.50/6,287.25 = 6,287.25/x
  3. Step 3: Cross multiply
    2,874.50x = 6,287.25 × 6,287.25
  4. Step 4: Simplify right side
    2,874.50x = 39,529,512.56
  5. Step 5: Solve for x
    x = 39,529,512.56/2,874.50
  6. Step 6: Final answer
    x = 13,751.79

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.