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Finding the Fourth Proportional to 2,614.01, 3,919.11 and 1,226.63

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Solution

The fourth proportional to 2,614.01, 3,919.11 and 1,226.63 is: 1,839.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,614.01 : 3,919.11 = 1,226.63 : x
  2. Step 2: Convert to fraction form
    2,614.01/3,919.11 = 1,226.63/x
  3. Step 3: Cross multiply
    2,614.01x = 3,919.11 × 1,226.63
  4. Step 4: Simplify right side
    2,614.01x = 4,807,297.90
  5. Step 5: Solve for x
    x = 4,807,297.90/2,614.01
  6. Step 6: Final answer
    x = 1,839.05

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Why These Related Problems?

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