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Finding the Fourth Proportional to 7,993.35, 11,984.56 and 3,608.42

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Solution

The fourth proportional to 7,993.35, 11,984.56 and 3,608.42 is: 5,410.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.35 : 11,984.56 = 3,608.42 : x
  2. Step 2: Convert to fraction form
    7,993.35/11,984.56 = 3,608.42/x
  3. Step 3: Cross multiply
    7,993.35x = 11,984.56 × 3,608.42
  4. Step 4: Simplify right side
    7,993.35x = 43,245,257.05
  5. Step 5: Solve for x
    x = 43,245,257.05/7,993.35
  6. Step 6: Final answer
    x = 5,410.15

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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.