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Finding the Fourth Proportional to 7,993.63, 11,991.30 and 3,067.48

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Solution

The fourth proportional to 7,993.63, 11,991.30 and 3,067.48 is: 4,601.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.63 : 11,991.30 = 3,067.48 : x
  2. Step 2: Convert to fraction form
    7,993.63/11,991.30 = 3,067.48/x
  3. Step 3: Cross multiply
    7,993.63x = 11,991.30 × 3,067.48
  4. Step 4: Simplify right side
    7,993.63x = 36,783,072.92
  5. Step 5: Solve for x
    x = 36,783,072.92/7,993.63
  6. Step 6: Final answer
    x = 4,601.55

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1.5x scale

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.