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Finding the Fourth Proportional to 12,190.36, 18,293.19 and 4,794.62

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Solution

The fourth proportional to 12,190.36, 18,293.19 and 4,794.62 is: 7,194.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.36 : 18,293.19 = 4,794.62 : x
  2. Step 2: Convert to fraction form
    12,190.36/18,293.19 = 4,794.62/x
  3. Step 3: Cross multiply
    12,190.36x = 18,293.19 × 4,794.62
  4. Step 4: Simplify right side
    12,190.36x = 87,708,863.61
  5. Step 5: Solve for x
    x = 87,708,863.61/12,190.36
  6. Step 6: Final answer
    x = 7,194.94

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.