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Finding the Fourth Proportional to 4,919.73, 7,376.88 and 3,361.49

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Solution

The fourth proportional to 4,919.73, 7,376.88 and 3,361.49 is: 5,040.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.73 : 7,376.88 = 3,361.49 : x
  2. Step 2: Convert to fraction form
    4,919.73/7,376.88 = 3,361.49/x
  3. Step 3: Cross multiply
    4,919.73x = 7,376.88 × 3,361.49
  4. Step 4: Simplify right side
    4,919.73x = 24,797,254.66
  5. Step 5: Solve for x
    x = 24,797,254.66/4,919.73
  6. Step 6: Final answer
    x = 5,040.37

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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.