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Finding the Fourth Proportional to 3,372.22, 5,057.71 and 906.46

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Solution

The fourth proportional to 3,372.22, 5,057.71 and 906.46 is: 1,359.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,372.22 : 5,057.71 = 906.46 : x
  2. Step 2: Convert to fraction form
    3,372.22/5,057.71 = 906.46/x
  3. Step 3: Cross multiply
    3,372.22x = 5,057.71 × 906.46
  4. Step 4: Simplify right side
    3,372.22x = 4,584,614.07
  5. Step 5: Solve for x
    x = 4,584,614.07/3,372.22
  6. Step 6: Final answer
    x = 1,359.53

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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.