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Finding the Fourth Proportional to 6,827.72, 9,422.14 and 3,843.54

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Solution

The fourth proportional to 6,827.72, 9,422.14 and 3,843.54 is: 5,304.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,827.72 : 9,422.14 = 3,843.54 : x
  2. Step 2: Convert to fraction form
    6,827.72/9,422.14 = 3,843.54/x
  3. Step 3: Cross multiply
    6,827.72x = 9,422.14 × 3,843.54
  4. Step 4: Simplify right side
    6,827.72x = 36,214,371.98
  5. Step 5: Solve for x
    x = 36,214,371.98/6,827.72
  6. Step 6: Final answer
    x = 5,304.02

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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.