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Finding the Fourth Proportional to 6,479.37, 9,719.19 and 2,096.82

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Solution

The fourth proportional to 6,479.37, 9,719.19 and 2,096.82 is: 3,145.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.37 : 9,719.19 = 2,096.82 : x
  2. Step 2: Convert to fraction form
    6,479.37/9,719.19 = 2,096.82/x
  3. Step 3: Cross multiply
    6,479.37x = 9,719.19 × 2,096.82
  4. Step 4: Simplify right side
    6,479.37x = 20,379,391.98
  5. Step 5: Solve for x
    x = 20,379,391.98/6,479.37
  6. Step 6: Final answer
    x = 3,145.27

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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.