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Finding the Third Proportional to 629.50 and 1,360.38

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Solution

The third proportional to 629.50 and 1,360.38 is: 2,939.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.50 : 1,360.38 = 1,360.38 : x
  2. Step 2: Convert to fraction form
    629.50/1,360.38 = 1,360.38/x
  3. Step 3: Cross multiply
    629.50x = 1,360.38 × 1,360.38
  4. Step 4: Simplify right side
    629.50x = 1,850,620.14
  5. Step 5: Solve for x
    x = 1,850,620.14/629.50
  6. Step 6: Final answer
    x = 2,939.83

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.