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Finding the Fourth Proportional to 5,928.26, 8,157.39 and 5,747.90

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Solution

The fourth proportional to 5,928.26, 8,157.39 and 5,747.90 is: 7,909.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,928.26 : 8,157.39 = 5,747.90 : x
  2. Step 2: Convert to fraction form
    5,928.26/8,157.39 = 5,747.90/x
  3. Step 3: Cross multiply
    5,928.26x = 8,157.39 × 5,747.90
  4. Step 4: Simplify right side
    5,928.26x = 46,887,861.98
  5. Step 5: Solve for x
    x = 46,887,861.98/5,928.26
  6. Step 6: Final answer
    x = 7,909.21

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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.