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Finding the Fourth Proportional to 35,669,728.80, 53,504,593.20 and 18,663,616.80

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Solution

The fourth proportional to 35,669,728.80, 53,504,593.20 and 18,663,616.80 is: 27,995,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,669,728.80 : 53,504,593.20 = 18,663,616.80 : x
  2. Step 2: Convert to fraction form
    35,669,728.80/53,504,593.20 = 18,663,616.80/x
  3. Step 3: Cross multiply
    35,669,728.80x = 53,504,593.20 × 18,663,616.80
  4. Step 4: Simplify right side
    35,669,728.80x = 998,589,224,524,685.88
  5. Step 5: Solve for x
    x = 998,589,224,524,685.88/35,669,728.80
  6. Step 6: Final answer
    x = 27,995,425.20

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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.