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Finding the Fourth Proportional to 16,912.62, 25,373.08 and 5,819.48

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Solution

The fourth proportional to 16,912.62, 25,373.08 and 5,819.48 is: 8,730.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.62 : 25,373.08 = 5,819.48 : x
  2. Step 2: Convert to fraction form
    16,912.62/25,373.08 = 5,819.48/x
  3. Step 3: Cross multiply
    16,912.62x = 25,373.08 × 5,819.48
  4. Step 4: Simplify right side
    16,912.62x = 147,658,131.60
  5. Step 5: Solve for x
    x = 147,658,131.60/16,912.62
  6. Step 6: Final answer
    x = 8,730.65

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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.