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Finding the Third Proportional to 3,180.75 and 4,865.25

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Solution

The third proportional to 3,180.75 and 4,865.25 is: 7,441.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.75 : 4,865.25 = 4,865.25 : x
  2. Step 2: Convert to fraction form
    3,180.75/4,865.25 = 4,865.25/x
  3. Step 3: Cross multiply
    3,180.75x = 4,865.25 × 4,865.25
  4. Step 4: Simplify right side
    3,180.75x = 23,670,657.56
  5. Step 5: Solve for x
    x = 23,670,657.56/3,180.75
  6. Step 6: Final answer
    x = 7,441.85

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.