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Finding the Fourth Proportional to 3,773.94, 5,214.81 and 2,936.80

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Solution

The fourth proportional to 3,773.94, 5,214.81 and 2,936.80 is: 4,058.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,773.94 : 5,214.81 = 2,936.80 : x
  2. Step 2: Convert to fraction form
    3,773.94/5,214.81 = 2,936.80/x
  3. Step 3: Cross multiply
    3,773.94x = 5,214.81 × 2,936.80
  4. Step 4: Simplify right side
    3,773.94x = 15,314,854.01
  5. Step 5: Solve for x
    x = 15,314,854.01/3,773.94
  6. Step 6: Final answer
    x = 4,058.05

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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.