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Finding the Fourth Proportional to 5,739.57, 8,609.36 and 3,791.32

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Solution

The fourth proportional to 5,739.57, 8,609.36 and 3,791.32 is: 5,686.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,739.57 : 8,609.36 = 3,791.32 : x
  2. Step 2: Convert to fraction form
    5,739.57/8,609.36 = 3,791.32/x
  3. Step 3: Cross multiply
    5,739.57x = 8,609.36 × 3,791.32
  4. Step 4: Simplify right side
    5,739.57x = 32,640,798.28
  5. Step 5: Solve for x
    x = 32,640,798.28/5,739.57
  6. Step 6: Final answer
    x = 5,686.98

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Similar ratio
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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.