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Finding the Fourth Proportional to 3,993.12, 5,984.13 and 2,041.20

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Solution

The fourth proportional to 3,993.12, 5,984.13 and 2,041.20 is: 3,058.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.12 : 5,984.13 = 2,041.20 : x
  2. Step 2: Convert to fraction form
    3,993.12/5,984.13 = 2,041.20/x
  3. Step 3: Cross multiply
    3,993.12x = 5,984.13 × 2,041.20
  4. Step 4: Simplify right side
    3,993.12x = 12,214,806.16
  5. Step 5: Solve for x
    x = 12,214,806.16/3,993.12
  6. Step 6: Final answer
    x = 3,058.96

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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.