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Finding the Fourth Proportional to 8,519,062.02, 11,756,781.90 and 4,651,942.20

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Solution

The fourth proportional to 8,519,062.02, 11,756,781.90 and 4,651,942.20 is: 6,419,940.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519,062.02 : 11,756,781.90 = 4,651,942.20 : x
  2. Step 2: Convert to fraction form
    8,519,062.02/11,756,781.90 = 4,651,942.20/x
  3. Step 3: Cross multiply
    8,519,062.02x = 11,756,781.90 × 4,651,942.20
  4. Step 4: Simplify right side
    8,519,062.02x = 54,691,869,856,806.19
  5. Step 5: Solve for x
    x = 54,691,869,856,806.19/8,519,062.02
  6. Step 6: Final answer
    x = 6,419,940.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.