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Finding the Fourth Proportional to 40,209.94, 60,315.08 and 16,819.98

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Solution

The fourth proportional to 40,209.94, 60,315.08 and 16,819.98 is: 25,230.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,209.94 : 60,315.08 = 16,819.98 : x
  2. Step 2: Convert to fraction form
    40,209.94/60,315.08 = 16,819.98/x
  3. Step 3: Cross multiply
    40,209.94x = 60,315.08 × 16,819.98
  4. Step 4: Simplify right side
    40,209.94x = 1,014,498,439.30
  5. Step 5: Solve for x
    x = 1,014,498,439.30/40,209.94
  6. Step 6: Final answer
    x = 25,230.04

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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.