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Finding the Fourth Proportional to 69,426.92, 104,140.69 and 16,836.39

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Solution

The fourth proportional to 69,426.92, 104,140.69 and 16,836.39 is: 25,254.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,426.92 : 104,140.69 = 16,836.39 : x
  2. Step 2: Convert to fraction form
    69,426.92/104,140.69 = 16,836.39/x
  3. Step 3: Cross multiply
    69,426.92x = 104,140.69 × 16,836.39
  4. Step 4: Simplify right side
    69,426.92x = 1,753,353,229.62
  5. Step 5: Solve for x
    x = 1,753,353,229.62/69,426.92
  6. Step 6: Final answer
    x = 25,254.66

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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.