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Finding the Third Proportional to 3,969.75 and 5,947.13

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Solution

The third proportional to 3,969.75 and 5,947.13 is: 8,909.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.75 : 5,947.13 = 5,947.13 : x
  2. Step 2: Convert to fraction form
    3,969.75/5,947.13 = 5,947.13/x
  3. Step 3: Cross multiply
    3,969.75x = 5,947.13 × 5,947.13
  4. Step 4: Simplify right side
    3,969.75x = 35,368,295.77
  5. Step 5: Solve for x
    x = 35,368,295.77/3,969.75
  6. Step 6: Final answer
    x = 8,909.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.