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Finding the Fourth Proportional to 40,791.54, 61,179.99 and 11,205.54

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Solution

The fourth proportional to 40,791.54, 61,179.99 and 11,205.54 is: 16,806.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,791.54 : 61,179.99 = 11,205.54 : x
  2. Step 2: Convert to fraction form
    40,791.54/61,179.99 = 11,205.54/x
  3. Step 3: Cross multiply
    40,791.54x = 61,179.99 × 11,205.54
  4. Step 4: Simplify right side
    40,791.54x = 685,554,825.14
  5. Step 5: Solve for x
    x = 685,554,825.14/40,791.54
  6. Step 6: Final answer
    x = 16,806.30

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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.