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Finding the Fourth Proportional to 16,758.73, 25,138.11 and 6,891.11

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Solution

The fourth proportional to 16,758.73, 25,138.11 and 6,891.11 is: 10,336.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,758.73 : 25,138.11 = 6,891.11 : x
  2. Step 2: Convert to fraction form
    16,758.73/25,138.11 = 6,891.11/x
  3. Step 3: Cross multiply
    16,758.73x = 25,138.11 × 6,891.11
  4. Step 4: Simplify right side
    16,758.73x = 173,229,475.62
  5. Step 5: Solve for x
    x = 173,229,475.62/16,758.73
  6. Step 6: Final answer
    x = 10,336.67

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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.