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Finding the Fourth Proportional to 18,268.41, 27,392.01 and 7,162.08

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Solution

The fourth proportional to 18,268.41, 27,392.01 and 7,162.08 is: 10,738.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268.41 : 27,392.01 = 7,162.08 : x
  2. Step 2: Convert to fraction form
    18,268.41/27,392.01 = 7,162.08/x
  3. Step 3: Cross multiply
    18,268.41x = 27,392.01 × 7,162.08
  4. Step 4: Simplify right side
    18,268.41x = 196,183,766.98
  5. Step 5: Solve for x
    x = 196,183,766.98/18,268.41
  6. Step 6: Final answer
    x = 10,738.96

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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.