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Finding the Fourth Proportional to 22,361.52, 30,843.28 and 18,981.02

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Solution

The fourth proportional to 22,361.52, 30,843.28 and 18,981.02 is: 26,180.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,361.52 : 30,843.28 = 18,981.02 : x
  2. Step 2: Convert to fraction form
    22,361.52/30,843.28 = 18,981.02/x
  3. Step 3: Cross multiply
    22,361.52x = 30,843.28 × 18,981.02
  4. Step 4: Simplify right side
    22,361.52x = 585,436,914.55
  5. Step 5: Solve for x
    x = 585,436,914.55/22,361.52
  6. Step 6: Final answer
    x = 26,180.55

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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.