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Finding the Fourth Proportional to 6,781.42, 9,358.62 and 3,797.22

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Solution

The fourth proportional to 6,781.42, 9,358.62 and 3,797.22 is: 5,240.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.42 : 9,358.62 = 3,797.22 : x
  2. Step 2: Convert to fraction form
    6,781.42/9,358.62 = 3,797.22/x
  3. Step 3: Cross multiply
    6,781.42x = 9,358.62 × 3,797.22
  4. Step 4: Simplify right side
    6,781.42x = 35,536,762.43
  5. Step 5: Solve for x
    x = 35,536,762.43/6,781.42
  6. Step 6: Final answer
    x = 5,240.32

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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.