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Finding the Fourth Proportional to 69,608.57, 104,399.52 and 19,676.62

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Solution

The fourth proportional to 69,608.57, 104,399.52 and 19,676.62 is: 29,511.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,608.57 : 104,399.52 = 19,676.62 : x
  2. Step 2: Convert to fraction form
    69,608.57/104,399.52 = 19,676.62/x
  3. Step 3: Cross multiply
    69,608.57x = 104,399.52 × 19,676.62
  4. Step 4: Simplify right side
    69,608.57x = 2,054,229,822.95
  5. Step 5: Solve for x
    x = 2,054,229,822.95/69,608.57
  6. Step 6: Final answer
    x = 29,511.16

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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.