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Finding the Fourth Proportional to 6,144.43, 8,479.31 and 3,349.93

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Solution

The fourth proportional to 6,144.43, 8,479.31 and 3,349.93 is: 4,622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,144.43 : 8,479.31 = 3,349.93 : x
  2. Step 2: Convert to fraction form
    6,144.43/8,479.31 = 3,349.93/x
  3. Step 3: Cross multiply
    6,144.43x = 8,479.31 × 3,349.93
  4. Step 4: Simplify right side
    6,144.43x = 28,405,057.00
  5. Step 5: Solve for x
    x = 28,405,057.00/6,144.43
  6. Step 6: Final answer
    x = 4,622.90

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Why These Related Problems?

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