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Finding the Fourth Proportional to 3,974.04, 5,481.90 and 3,503.07

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Solution

The fourth proportional to 3,974.04, 5,481.90 and 3,503.07 is: 4,832.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.04 : 5,481.90 = 3,503.07 : x
  2. Step 2: Convert to fraction form
    3,974.04/5,481.90 = 3,503.07/x
  3. Step 3: Cross multiply
    3,974.04x = 5,481.90 × 3,503.07
  4. Step 4: Simplify right side
    3,974.04x = 19,203,479.43
  5. Step 5: Solve for x
    x = 19,203,479.43/3,974.04
  6. Step 6: Final answer
    x = 4,832.23

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1.5x scale

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.