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Finding the Fourth Proportional to 3,976.44, 5,485.88 and 2,559.86

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Solution

The fourth proportional to 3,976.44, 5,485.88 and 2,559.86 is: 3,531.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.44 : 5,485.88 = 2,559.86 : x
  2. Step 2: Convert to fraction form
    3,976.44/5,485.88 = 2,559.86/x
  3. Step 3: Cross multiply
    3,976.44x = 5,485.88 × 2,559.86
  4. Step 4: Simplify right side
    3,976.44x = 14,043,084.78
  5. Step 5: Solve for x
    x = 14,043,084.78/3,976.44
  6. Step 6: Final answer
    x = 3,531.57

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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.