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Finding the Fourth Proportional to 3,194.61, 4,791.90 and 1,551.39

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Solution

The fourth proportional to 3,194.61, 4,791.90 and 1,551.39 is: 2,327.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,194.61 : 4,791.90 = 1,551.39 : x
  2. Step 2: Convert to fraction form
    3,194.61/4,791.90 = 1,551.39/x
  3. Step 3: Cross multiply
    3,194.61x = 4,791.90 × 1,551.39
  4. Step 4: Simplify right side
    3,194.61x = 7,434,105.74
  5. Step 5: Solve for x
    x = 7,434,105.74/3,194.61
  6. Step 6: Final answer
    x = 2,327.08

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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.