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Finding the Fourth Proportional to 7,910.41, 11,860.74 and 3,226.60

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Solution

The fourth proportional to 7,910.41, 11,860.74 and 3,226.60 is: 4,837.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.41 : 11,860.74 = 3,226.60 : x
  2. Step 2: Convert to fraction form
    7,910.41/11,860.74 = 3,226.60/x
  3. Step 3: Cross multiply
    7,910.41x = 11,860.74 × 3,226.60
  4. Step 4: Simplify right side
    7,910.41x = 38,269,863.68
  5. Step 5: Solve for x
    x = 38,269,863.68/7,910.41
  6. Step 6: Final answer
    x = 4,837.91

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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.