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Finding the Third Proportional to 773.25 and 1,214.25

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Solution

The third proportional to 773.25 and 1,214.25 is: 1,906.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.25 : 1,214.25 = 1,214.25 : x
  2. Step 2: Convert to fraction form
    773.25/1,214.25 = 1,214.25/x
  3. Step 3: Cross multiply
    773.25x = 1,214.25 × 1,214.25
  4. Step 4: Simplify right side
    773.25x = 1,474,403.06
  5. Step 5: Solve for x
    x = 1,474,403.06/773.25
  6. Step 6: Final answer
    x = 1,906.76

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.