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Finding the Third Proportional to 3,777.75 and 8,285

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Solution

The third proportional to 3,777.75 and 8,285 is: 18,169.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.75 : 8,285 = 8,285 : x
  2. Step 2: Convert to fraction form
    3,777.75/8,285 = 8,285/x
  3. Step 3: Cross multiply
    3,777.75x = 8,285 × 8,285
  4. Step 4: Simplify right side
    3,777.75x = 68,641,225
  5. Step 5: Solve for x
    x = 68,641,225/3,777.75
  6. Step 6: Final answer
    x = 18,169.87

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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.