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Finding the Fourth Proportional to 6,899.68, 9,522.26 and 4,067.92

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Solution

The fourth proportional to 6,899.68, 9,522.26 and 4,067.92 is: 5,614.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.68 : 9,522.26 = 4,067.92 : x
  2. Step 2: Convert to fraction form
    6,899.68/9,522.26 = 4,067.92/x
  3. Step 3: Cross multiply
    6,899.68x = 9,522.26 × 4,067.92
  4. Step 4: Simplify right side
    6,899.68x = 38,735,791.90
  5. Step 5: Solve for x
    x = 38,735,791.90/6,899.68
  6. Step 6: Final answer
    x = 5,614.14

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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.