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Finding the Fourth Proportional to 69,379.74, 104,079.60 and 22,621.68

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Solution

The fourth proportional to 69,379.74, 104,079.60 and 22,621.68 is: 33,935.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,379.74 : 104,079.60 = 22,621.68 : x
  2. Step 2: Convert to fraction form
    69,379.74/104,079.60 = 22,621.68/x
  3. Step 3: Cross multiply
    69,379.74x = 104,079.60 × 22,621.68
  4. Step 4: Simplify right side
    69,379.74x = 2,354,455,405.73
  5. Step 5: Solve for x
    x = 2,354,455,405.73/69,379.74
  6. Step 6: Final answer
    x = 33,935.78

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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.