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Finding the Fourth Proportional to 41,393.40, 62,099.74 and 11,811.64

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Solution

The fourth proportional to 41,393.40, 62,099.74 and 11,811.64 is: 17,720.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,393.40 : 62,099.74 = 11,811.64 : x
  2. Step 2: Convert to fraction form
    41,393.40/62,099.74 = 11,811.64/x
  3. Step 3: Cross multiply
    41,393.40x = 62,099.74 × 11,811.64
  4. Step 4: Simplify right side
    41,393.40x = 733,499,772.97
  5. Step 5: Solve for x
    x = 733,499,772.97/41,393.40
  6. Step 6: Final answer
    x = 17,720.21

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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.