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Finding the Fourth Proportional to 8,995.75, 13,494.39 and 3,072.39

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Solution

The fourth proportional to 8,995.75, 13,494.39 and 3,072.39 is: 4,608.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.75 : 13,494.39 = 3,072.39 : x
  2. Step 2: Convert to fraction form
    8,995.75/13,494.39 = 3,072.39/x
  3. Step 3: Cross multiply
    8,995.75x = 13,494.39 × 3,072.39
  4. Step 4: Simplify right side
    8,995.75x = 41,460,067.05
  5. Step 5: Solve for x
    x = 41,460,067.05/8,995.75
  6. Step 6: Final answer
    x = 4,608.85

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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.