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Finding the Fourth Proportional to 3,899.84, 5,850.68 and 2,667.83

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Solution

The fourth proportional to 3,899.84, 5,850.68 and 2,667.83 is: 4,002.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.84 : 5,850.68 = 2,667.83 : x
  2. Step 2: Convert to fraction form
    3,899.84/5,850.68 = 2,667.83/x
  3. Step 3: Cross multiply
    3,899.84x = 5,850.68 × 2,667.83
  4. Step 4: Simplify right side
    3,899.84x = 15,608,606.29
  5. Step 5: Solve for x
    x = 15,608,606.29/3,899.84
  6. Step 6: Final answer
    x = 4,002.37

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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.