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Finding the Fourth Proportional to 69,336.35, 104,020.18 and 21,954.32

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Solution

The fourth proportional to 69,336.35, 104,020.18 and 21,954.32 is: 32,936.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,336.35 : 104,020.18 = 21,954.32 : x
  2. Step 2: Convert to fraction form
    69,336.35/104,020.18 = 21,954.32/x
  3. Step 3: Cross multiply
    69,336.35x = 104,020.18 × 21,954.32
  4. Step 4: Simplify right side
    69,336.35x = 2,283,691,743.19
  5. Step 5: Solve for x
    x = 2,283,691,743.19/69,336.35
  6. Step 6: Final answer
    x = 32,936.43

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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.