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Finding the Fourth Proportional to 22,015,863.20, 33,023,794.80 and 20,031,816.80

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Solution

The fourth proportional to 22,015,863.20, 33,023,794.80 and 20,031,816.80 is: 30,047,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,015,863.20 : 33,023,794.80 = 20,031,816.80 : x
  2. Step 2: Convert to fraction form
    22,015,863.20/33,023,794.80 = 20,031,816.80/x
  3. Step 3: Cross multiply
    22,015,863.20x = 33,023,794.80 × 20,031,816.80
  4. Step 4: Simplify right side
    22,015,863.20x = 661,526,607,474,392.62
  5. Step 5: Solve for x
    x = 661,526,607,474,392.62/22,015,863.20
  6. Step 6: Final answer
    x = 30,047,725.20

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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.