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Finding the Fourth Proportional to 33,000,835.70, 49,481,570.55 and 20,230,505.30

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Solution

The fourth proportional to 33,000,835.70, 49,481,570.55 and 20,230,505.30 is: 30,333,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,000,835.70 : 49,481,570.55 = 20,230,505.30 : x
  2. Step 2: Convert to fraction form
    33,000,835.70/49,481,570.55 = 20,230,505.30/x
  3. Step 3: Cross multiply
    33,000,835.70x = 49,481,570.55 × 20,230,505.30
  4. Step 4: Simplify right side
    33,000,835.70x = 1,001,037,175,264,098.88
  5. Step 5: Solve for x
    x = 1,001,037,175,264,098.88/33,000,835.70
  6. Step 6: Final answer
    x = 30,333,691.68

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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.