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Finding the Third Proportional to 625.78 and 960.05

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Solution

The third proportional to 625.78 and 960.05 is: 1,472.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.78 : 960.05 = 960.05 : x
  2. Step 2: Convert to fraction form
    625.78/960.05 = 960.05/x
  3. Step 3: Cross multiply
    625.78x = 960.05 × 960.05
  4. Step 4: Simplify right side
    625.78x = 921,690.00
  5. Step 5: Solve for x
    x = 921,690.00/625.78
  6. Step 6: Final answer
    x = 1,472.86

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.