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Finding the Fourth Proportional to 69,893.92, 104,806.32 and 36,612.64

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Solution

The fourth proportional to 69,893.92, 104,806.32 and 36,612.64 is: 54,900.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,893.92 : 104,806.32 = 36,612.64 : x
  2. Step 2: Convert to fraction form
    69,893.92/104,806.32 = 36,612.64/x
  3. Step 3: Cross multiply
    69,893.92x = 104,806.32 × 36,612.64
  4. Step 4: Simplify right side
    69,893.92x = 3,837,236,063.88
  5. Step 5: Solve for x
    x = 3,837,236,063.88/69,893.92
  6. Step 6: Final answer
    x = 54,900.86

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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.