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Finding the Fourth Proportional to 3,351.66, 5,027.90 and 1,403.88

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Solution

The fourth proportional to 3,351.66, 5,027.90 and 1,403.88 is: 2,105.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.66 : 5,027.90 = 1,403.88 : x
  2. Step 2: Convert to fraction form
    3,351.66/5,027.90 = 1,403.88/x
  3. Step 3: Cross multiply
    3,351.66x = 5,027.90 × 1,403.88
  4. Step 4: Simplify right side
    3,351.66x = 7,058,568.25
  5. Step 5: Solve for x
    x = 7,058,568.25/3,351.66
  6. Step 6: Final answer
    x = 2,105.99

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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.