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Finding the Fourth Proportional to 69,410.64, 104,115.84 and 16,819.98

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Solution

The fourth proportional to 69,410.64, 104,115.84 and 16,819.98 is: 25,229.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,410.64 : 104,115.84 = 16,819.98 : x
  2. Step 2: Convert to fraction form
    69,410.64/104,115.84 = 16,819.98/x
  3. Step 3: Cross multiply
    69,410.64x = 104,115.84 × 16,819.98
  4. Step 4: Simplify right side
    69,410.64x = 1,751,226,346.48
  5. Step 5: Solve for x
    x = 1,751,226,346.48/69,410.64
  6. Step 6: Final answer
    x = 25,229.94

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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.