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Finding the Third Proportional to 366.25 and 789

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Solution

The third proportional to 366.25 and 789 is: 1,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.25 : 789 = 789 : x
  2. Step 2: Convert to fraction form
    366.25/789 = 789/x
  3. Step 3: Cross multiply
    366.25x = 789 × 789
  4. Step 4: Simplify right side
    366.25x = 622,521
  5. Step 5: Solve for x
    x = 622,521/366.25
  6. Step 6: Final answer
    x = 1,699.72

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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.