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Finding the Fourth Proportional to 12,422.62, 18,634.43 and 5,844.21

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Solution

The fourth proportional to 12,422.62, 18,634.43 and 5,844.21 is: 8,766.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.62 : 18,634.43 = 5,844.21 : x
  2. Step 2: Convert to fraction form
    12,422.62/18,634.43 = 5,844.21/x
  3. Step 3: Cross multiply
    12,422.62x = 18,634.43 × 5,844.21
  4. Step 4: Simplify right side
    12,422.62x = 108,903,522.15
  5. Step 5: Solve for x
    x = 108,903,522.15/12,422.62
  6. Step 6: Final answer
    x = 8,766.55

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1.5x scale

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.