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Finding the Fourth Proportional to 8,505.30, 12,760.38 and 3,241.92

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Solution

The fourth proportional to 8,505.30, 12,760.38 and 3,241.92 is: 4,863.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.30 : 12,760.38 = 3,241.92 : x
  2. Step 2: Convert to fraction form
    8,505.30/12,760.38 = 3,241.92/x
  3. Step 3: Cross multiply
    8,505.30x = 12,760.38 × 3,241.92
  4. Step 4: Simplify right side
    8,505.30x = 41,368,131.13
  5. Step 5: Solve for x
    x = 41,368,131.13/8,505.30
  6. Step 6: Final answer
    x = 4,863.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.