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Finding the Fourth Proportional to 5,731.22, 7,908.98 and 3,213.41

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Solution

The fourth proportional to 5,731.22, 7,908.98 and 3,213.41 is: 4,434.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,731.22 : 7,908.98 = 3,213.41 : x
  2. Step 2: Convert to fraction form
    5,731.22/7,908.98 = 3,213.41/x
  3. Step 3: Cross multiply
    5,731.22x = 7,908.98 × 3,213.41
  4. Step 4: Simplify right side
    5,731.22x = 25,414,739.81
  5. Step 5: Solve for x
    x = 25,414,739.81/5,731.22
  6. Step 6: Final answer
    x = 4,434.44

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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.