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Finding the Fourth Proportional to 5,286.99, 7,930.79 and 1,589.14

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Solution

The fourth proportional to 5,286.99, 7,930.79 and 1,589.14 is: 2,383.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.99 : 7,930.79 = 1,589.14 : x
  2. Step 2: Convert to fraction form
    5,286.99/7,930.79 = 1,589.14/x
  3. Step 3: Cross multiply
    5,286.99x = 7,930.79 × 1,589.14
  4. Step 4: Simplify right side
    5,286.99x = 12,603,135.62
  5. Step 5: Solve for x
    x = 12,603,135.62/5,286.99
  6. Step 6: Final answer
    x = 2,383.80

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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.