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Finding the Fourth Proportional to 69,236.62, 103,873.52 and 21,853.54

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Solution

The fourth proportional to 69,236.62, 103,873.52 and 21,853.54 is: 32,786.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,236.62 : 103,873.52 = 21,853.54 : x
  2. Step 2: Convert to fraction form
    69,236.62/103,873.52 = 21,853.54/x
  3. Step 3: Cross multiply
    69,236.62x = 103,873.52 × 21,853.54
  4. Step 4: Simplify right side
    69,236.62x = 2,270,004,124.26
  5. Step 5: Solve for x
    x = 2,270,004,124.26/69,236.62
  6. Step 6: Final answer
    x = 32,786.18

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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.