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Finding the Fourth Proportional to 69,891.39, 104,824.13 and 23,138.19

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Solution

The fourth proportional to 69,891.39, 104,824.13 and 23,138.19 is: 34,702.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,891.39 : 104,824.13 = 23,138.19 : x
  2. Step 2: Convert to fraction form
    69,891.39/104,824.13 = 23,138.19/x
  3. Step 3: Cross multiply
    69,891.39x = 104,824.13 × 23,138.19
  4. Step 4: Simplify right side
    69,891.39x = 2,425,440,520.83
  5. Step 5: Solve for x
    x = 2,425,440,520.83/69,891.39
  6. Step 6: Final answer
    x = 34,702.99

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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.