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Finding the Fourth Proportional to 6,793,940.60, 9,375,896.04 and 3,893,891.12

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Solution

The fourth proportional to 6,793,940.60, 9,375,896.04 and 3,893,891.12 is: 5,373,717.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,793,940.60 : 9,375,896.04 = 3,893,891.12 : x
  2. Step 2: Convert to fraction form
    6,793,940.60/9,375,896.04 = 3,893,891.12/x
  3. Step 3: Cross multiply
    6,793,940.60x = 9,375,896.04 × 3,893,891.12
  4. Step 4: Simplify right side
    6,793,940.60x = 36,508,718,332,199.16
  5. Step 5: Solve for x
    x = 36,508,718,332,199.16/6,793,940.60
  6. Step 6: Final answer
    x = 5,373,717.62

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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.