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Finding the Fourth Proportional to 22,015,871.20, 33,023,806.80 and 20,031,824.80

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Solution

The fourth proportional to 22,015,871.20, 33,023,806.80 and 20,031,824.80 is: 30,047,737.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,015,871.20 : 33,023,806.80 = 20,031,824.80 : x
  2. Step 2: Convert to fraction form
    22,015,871.20/33,023,806.80 = 20,031,824.80/x
  3. Step 3: Cross multiply
    22,015,871.20x = 33,023,806.80 × 20,031,824.80
  4. Step 4: Simplify right side
    22,015,871.20x = 661,527,112,046,648.62
  5. Step 5: Solve for x
    x = 661,527,112,046,648.62/22,015,871.20
  6. Step 6: Final answer
    x = 30,047,737.20

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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.