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Finding the Fourth Proportional to 3,944.33, 5,917.50 and 1,479.17

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Solution

The fourth proportional to 3,944.33, 5,917.50 and 1,479.17 is: 2,219.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,944.33 : 5,917.50 = 1,479.17 : x
  2. Step 2: Convert to fraction form
    3,944.33/5,917.50 = 1,479.17/x
  3. Step 3: Cross multiply
    3,944.33x = 5,917.50 × 1,479.17
  4. Step 4: Simplify right side
    3,944.33x = 8,752,958.89
  5. Step 5: Solve for x
    x = 8,752,958.89/3,944.33
  6. Step 6: Final answer
    x = 2,219.13

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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.