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Finding the Fourth Proportional to 3,086.56, 4,651.31 and 2,794.15

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Solution

The fourth proportional to 3,086.56, 4,651.31 and 2,794.15 is: 4,210.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.56 : 4,651.31 = 2,794.15 : x
  2. Step 2: Convert to fraction form
    3,086.56/4,651.31 = 2,794.15/x
  3. Step 3: Cross multiply
    3,086.56x = 4,651.31 × 2,794.15
  4. Step 4: Simplify right side
    3,086.56x = 12,996,457.84
  5. Step 5: Solve for x
    x = 12,996,457.84/3,086.56
  6. Step 6: Final answer
    x = 4,210.66

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.