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Finding the Fourth Proportional to 6,245.30, 8,617.47 and 3,728.43

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Solution

The fourth proportional to 6,245.30, 8,617.47 and 3,728.43 is: 5,144.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,245.30 : 8,617.47 = 3,728.43 : x
  2. Step 2: Convert to fraction form
    6,245.30/8,617.47 = 3,728.43/x
  3. Step 3: Cross multiply
    6,245.30x = 8,617.47 × 3,728.43
  4. Step 4: Simplify right side
    6,245.30x = 32,129,590.58
  5. Step 5: Solve for x
    x = 32,129,590.58/6,245.30
  6. Step 6: Final answer
    x = 5,144.61

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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.