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Finding the Fourth Proportional to 5,502.77, 8,249.15 and 1,991.96

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Solution

The fourth proportional to 5,502.77, 8,249.15 and 1,991.96 is: 2,986.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,502.77 : 8,249.15 = 1,991.96 : x
  2. Step 2: Convert to fraction form
    5,502.77/8,249.15 = 1,991.96/x
  3. Step 3: Cross multiply
    5,502.77x = 8,249.15 × 1,991.96
  4. Step 4: Simplify right side
    5,502.77x = 16,431,940.57
  5. Step 5: Solve for x
    x = 16,431,940.57/5,502.77
  6. Step 6: Final answer
    x = 2,986.12

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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.