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Finding the Fourth Proportional to 16,620.43, 22,936.20 and 9,168.43

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Solution

The fourth proportional to 16,620.43, 22,936.20 and 9,168.43 is: 12,652.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,620.43 : 22,936.20 = 9,168.43 : x
  2. Step 2: Convert to fraction form
    16,620.43/22,936.20 = 9,168.43/x
  3. Step 3: Cross multiply
    16,620.43x = 22,936.20 × 9,168.43
  4. Step 4: Simplify right side
    16,620.43x = 210,288,944.17
  5. Step 5: Solve for x
    x = 210,288,944.17/16,620.43
  6. Step 6: Final answer
    x = 12,652.44

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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.