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Finding the Fourth Proportional to 69,786.22, 104,696.87 and 22,405.55

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Solution

The fourth proportional to 69,786.22, 104,696.87 and 22,405.55 is: 33,613.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,786.22 : 104,696.87 = 22,405.55 : x
  2. Step 2: Convert to fraction form
    69,786.22/104,696.87 = 22,405.55/x
  3. Step 3: Cross multiply
    69,786.22x = 104,696.87 × 22,405.55
  4. Step 4: Simplify right side
    69,786.22x = 2,345,790,935.10
  5. Step 5: Solve for x
    x = 2,345,790,935.10/69,786.22
  6. Step 6: Final answer
    x = 33,613.96

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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.