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Finding the Third Proportional to 939.80 and 2,544.19

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Solution

The third proportional to 939.80 and 2,544.19 is: 6,887.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    939.80 : 2,544.19 = 2,544.19 : x
  2. Step 2: Convert to fraction form
    939.80/2,544.19 = 2,544.19/x
  3. Step 3: Cross multiply
    939.80x = 2,544.19 × 2,544.19
  4. Step 4: Simplify right side
    939.80x = 6,472,890.04
  5. Step 5: Solve for x
    x = 6,472,890.04/939.80
  6. Step 6: Final answer
    x = 6,887.54

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Why These Related Problems?

These problems maintain the same ratio (2.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.