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Finding the Third Proportional to 936.19 and 1,993.69

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Solution

The third proportional to 936.19 and 1,993.69 is: 4,245.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.19 : 1,993.69 = 1,993.69 : x
  2. Step 2: Convert to fraction form
    936.19/1,993.69 = 1,993.69/x
  3. Step 3: Cross multiply
    936.19x = 1,993.69 × 1,993.69
  4. Step 4: Simplify right side
    936.19x = 3,974,789.85
  5. Step 5: Solve for x
    x = 3,974,789.85/936.19
  6. Step 6: Final answer
    x = 4,245.72

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.