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Finding the Fourth Proportional to 6,479.29, 8,942.69 and 4,213.43

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Solution

The fourth proportional to 6,479.29, 8,942.69 and 4,213.43 is: 5,815.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.29 : 8,942.69 = 4,213.43 : x
  2. Step 2: Convert to fraction form
    6,479.29/8,942.69 = 4,213.43/x
  3. Step 3: Cross multiply
    6,479.29x = 8,942.69 × 4,213.43
  4. Step 4: Simplify right side
    6,479.29x = 37,679,399.62
  5. Step 5: Solve for x
    x = 37,679,399.62/6,479.29
  6. Step 6: Final answer
    x = 5,815.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.