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Finding the Fourth Proportional to 3,493.28, 4,822.80 and 3,104.48

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Solution

The fourth proportional to 3,493.28, 4,822.80 and 3,104.48 is: 4,286.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.28 : 4,822.80 = 3,104.48 : x
  2. Step 2: Convert to fraction form
    3,493.28/4,822.80 = 3,104.48/x
  3. Step 3: Cross multiply
    3,493.28x = 4,822.80 × 3,104.48
  4. Step 4: Simplify right side
    3,493.28x = 14,972,286.14
  5. Step 5: Solve for x
    x = 14,972,286.14/3,493.28
  6. Step 6: Final answer
    x = 4,286.03

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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.