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Finding the Third Proportional to 863.25 and 1,773.75

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Solution

The third proportional to 863.25 and 1,773.75 is: 3,644.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    863.25 : 1,773.75 = 1,773.75 : x
  2. Step 2: Convert to fraction form
    863.25/1,773.75 = 1,773.75/x
  3. Step 3: Cross multiply
    863.25x = 1,773.75 × 1,773.75
  4. Step 4: Simplify right side
    863.25x = 3,146,189.06
  5. Step 5: Solve for x
    x = 3,146,189.06/863.25
  6. Step 6: Final answer
    x = 3,644.59

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.