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Finding the Third Proportional to 625.50 and 888.38

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Solution

The third proportional to 625.50 and 888.38 is: 1,261.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.50 : 888.38 = 888.38 : x
  2. Step 2: Convert to fraction form
    625.50/888.38 = 888.38/x
  3. Step 3: Cross multiply
    625.50x = 888.38 × 888.38
  4. Step 4: Simplify right side
    625.50x = 789,210.14
  5. Step 5: Solve for x
    x = 789,210.14/625.50
  6. Step 6: Final answer
    x = 1,261.73

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.