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Finding the Fourth Proportional to 7,489.98, 11,234.94 and 5,847.90

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Solution

The fourth proportional to 7,489.98, 11,234.94 and 5,847.90 is: 8,771.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.98 : 11,234.94 = 5,847.90 : x
  2. Step 2: Convert to fraction form
    7,489.98/11,234.94 = 5,847.90/x
  3. Step 3: Cross multiply
    7,489.98x = 11,234.94 × 5,847.90
  4. Step 4: Simplify right side
    7,489.98x = 65,700,805.63
  5. Step 5: Solve for x
    x = 65,700,805.63/7,489.98
  6. Step 6: Final answer
    x = 8,771.83

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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.