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Finding the Fourth Proportional to 6,774.44, 9,348.21 and 3,789.72

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Solution

The fourth proportional to 6,774.44, 9,348.21 and 3,789.72 is: 5,229.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,774.44 : 9,348.21 = 3,789.72 : x
  2. Step 2: Convert to fraction form
    6,774.44/9,348.21 = 3,789.72/x
  3. Step 3: Cross multiply
    6,774.44x = 9,348.21 × 3,789.72
  4. Step 4: Simplify right side
    6,774.44x = 35,427,098.40
  5. Step 5: Solve for x
    x = 35,427,098.40/6,774.44
  6. Step 6: Final answer
    x = 5,229.53

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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.