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Finding the Fourth Proportional to 44,608.65, 66,912.66 and 11,328.81

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Solution

The fourth proportional to 44,608.65, 66,912.66 and 11,328.81 is: 16,993.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,608.65 : 66,912.66 = 11,328.81 : x
  2. Step 2: Convert to fraction form
    44,608.65/66,912.66 = 11,328.81/x
  3. Step 3: Cross multiply
    44,608.65x = 66,912.66 × 11,328.81
  4. Step 4: Simplify right side
    44,608.65x = 758,040,811.73
  5. Step 5: Solve for x
    x = 758,040,811.73/44,608.65
  6. Step 6: Final answer
    x = 16,993.14

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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.