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Finding the Fourth Proportional to 3,375.79, 5,065.08 and 1,814.83

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Solution

The fourth proportional to 3,375.79, 5,065.08 and 1,814.83 is: 2,722.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.79 : 5,065.08 = 1,814.83 : x
  2. Step 2: Convert to fraction form
    3,375.79/5,065.08 = 1,814.83/x
  3. Step 3: Cross multiply
    3,375.79x = 5,065.08 × 1,814.83
  4. Step 4: Simplify right side
    3,375.79x = 9,192,259.14
  5. Step 5: Solve for x
    x = 9,192,259.14/3,375.79
  6. Step 6: Final answer
    x = 2,722.99

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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.