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Finding the Fourth Proportional to 3,998.62, 5,983.35 and 2,355.94

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Solution

The fourth proportional to 3,998.62, 5,983.35 and 2,355.94 is: 3,525.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.62 : 5,983.35 = 2,355.94 : x
  2. Step 2: Convert to fraction form
    3,998.62/5,983.35 = 2,355.94/x
  3. Step 3: Cross multiply
    3,998.62x = 5,983.35 × 2,355.94
  4. Step 4: Simplify right side
    3,998.62x = 14,096,413.60
  5. Step 5: Solve for x
    x = 14,096,413.60/3,998.62
  6. Step 6: Final answer
    x = 3,525.32

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Why These Related Problems?

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