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Finding the Fourth Proportional to 69,363.66, 104,049.08 and 21,983.79

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Solution

The fourth proportional to 69,363.66, 104,049.08 and 21,983.79 is: 32,976.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,363.66 : 104,049.08 = 21,983.79 : x
  2. Step 2: Convert to fraction form
    69,363.66/104,049.08 = 21,983.79/x
  3. Step 3: Cross multiply
    69,363.66x = 104,049.08 × 21,983.79
  4. Step 4: Simplify right side
    69,363.66x = 2,287,393,124.41
  5. Step 5: Solve for x
    x = 2,287,393,124.41/69,363.66
  6. Step 6: Final answer
    x = 32,976.82

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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.