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Finding the Fourth Proportional to 22,524.60, 33,786.90 and 20,105.40

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Solution

The fourth proportional to 22,524.60, 33,786.90 and 20,105.40 is: 30,158.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,524.60 : 33,786.90 = 20,105.40 : x
  2. Step 2: Convert to fraction form
    22,524.60/33,786.90 = 20,105.40/x
  3. Step 3: Cross multiply
    22,524.60x = 33,786.90 × 20,105.40
  4. Step 4: Simplify right side
    22,524.60x = 679,299,139.26
  5. Step 5: Solve for x
    x = 679,299,139.26/22,524.60
  6. Step 6: Final answer
    x = 30,158.10

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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.