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Finding the Fourth Proportional to 3,891.15, 5,837.09 and 1,550.59

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Solution

The fourth proportional to 3,891.15, 5,837.09 and 1,550.59 is: 2,326.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.15 : 5,837.09 = 1,550.59 : x
  2. Step 2: Convert to fraction form
    3,891.15/5,837.09 = 1,550.59/x
  3. Step 3: Cross multiply
    3,891.15x = 5,837.09 × 1,550.59
  4. Step 4: Simplify right side
    3,891.15x = 9,050,933.38
  5. Step 5: Solve for x
    x = 9,050,933.38/3,891.15
  6. Step 6: Final answer
    x = 2,326.03

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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.