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Finding the Fourth Proportional to 33,959,396.80, 50,939,095.20 and 20,354,507.20

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Solution

The fourth proportional to 33,959,396.80, 50,939,095.20 and 20,354,507.20 is: 30,531,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,959,396.80 : 50,939,095.20 = 20,354,507.20 : x
  2. Step 2: Convert to fraction form
    33,959,396.80/50,939,095.20 = 20,354,507.20/x
  3. Step 3: Cross multiply
    33,959,396.80x = 50,939,095.20 × 20,354,507.20
  4. Step 4: Simplify right side
    33,959,396.80x = 1,036,840,180,009,885.50
  5. Step 5: Solve for x
    x = 1,036,840,180,009,885.50/33,959,396.80
  6. Step 6: Final answer
    x = 30,531,760.80

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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.