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Finding the Fourth Proportional to 2,380.32, 3,571.70 and 1,081.62

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Solution

The fourth proportional to 2,380.32, 3,571.70 and 1,081.62 is: 1,622.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.32 : 3,571.70 = 1,081.62 : x
  2. Step 2: Convert to fraction form
    2,380.32/3,571.70 = 1,081.62/x
  3. Step 3: Cross multiply
    2,380.32x = 3,571.70 × 1,081.62
  4. Step 4: Simplify right side
    2,380.32x = 3,863,216.75
  5. Step 5: Solve for x
    x = 3,863,216.75/2,380.32
  6. Step 6: Final answer
    x = 1,622.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.