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Finding the Fourth Proportional to 5,779.85, 7,975.91 and 3,227.44

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Solution

The fourth proportional to 5,779.85, 7,975.91 and 3,227.44 is: 4,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.85 : 7,975.91 = 3,227.44 : x
  2. Step 2: Convert to fraction form
    5,779.85/7,975.91 = 3,227.44/x
  3. Step 3: Cross multiply
    5,779.85x = 7,975.91 × 3,227.44
  4. Step 4: Simplify right side
    5,779.85x = 25,741,734.89
  5. Step 5: Solve for x
    x = 25,741,734.89/5,779.85
  6. Step 6: Final answer
    x = 4,453.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.