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Finding the Fourth Proportional to 7,085.56, 9,778.17 and 3,941.83

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Solution

The fourth proportional to 7,085.56, 9,778.17 and 3,941.83 is: 5,439.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.56 : 9,778.17 = 3,941.83 : x
  2. Step 2: Convert to fraction form
    7,085.56/9,778.17 = 3,941.83/x
  3. Step 3: Cross multiply
    7,085.56x = 9,778.17 × 3,941.83
  4. Step 4: Simplify right side
    7,085.56x = 38,543,883.85
  5. Step 5: Solve for x
    x = 38,543,883.85/7,085.56
  6. Step 6: Final answer
    x = 5,439.78

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