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Finding the Third Proportional to 892.25 and 1,917.25

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Solution

The third proportional to 892.25 and 1,917.25 is: 4,119.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    892.25 : 1,917.25 = 1,917.25 : x
  2. Step 2: Convert to fraction form
    892.25/1,917.25 = 1,917.25/x
  3. Step 3: Cross multiply
    892.25x = 1,917.25 × 1,917.25
  4. Step 4: Simplify right side
    892.25x = 3,675,847.56
  5. Step 5: Solve for x
    x = 3,675,847.56/892.25
  6. Step 6: Final answer
    x = 4,119.75

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.