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Finding the Fourth Proportional to 3,361.88, 5,039.74 and 1,414.22

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Solution

The fourth proportional to 3,361.88, 5,039.74 and 1,414.22 is: 2,120.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.88 : 5,039.74 = 1,414.22 : x
  2. Step 2: Convert to fraction form
    3,361.88/5,039.74 = 1,414.22/x
  3. Step 3: Cross multiply
    3,361.88x = 5,039.74 × 1,414.22
  4. Step 4: Simplify right side
    3,361.88x = 7,127,301.10
  5. Step 5: Solve for x
    x = 7,127,301.10/3,361.88
  6. Step 6: Final answer
    x = 2,120.03

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1.5x scale

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.