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Finding the Fourth Proportional to 27,891,912.88, 41,813,906.78 and 9,693,743.72

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Solution

The fourth proportional to 27,891,912.88, 41,813,906.78 and 9,693,743.72 is: 14,532,287.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,891,912.88 : 41,813,906.78 = 9,693,743.72 : x
  2. Step 2: Convert to fraction form
    27,891,912.88/41,813,906.78 = 9,693,743.72/x
  3. Step 3: Cross multiply
    27,891,912.88x = 41,813,906.78 × 9,693,743.72
  4. Step 4: Simplify right side
    27,891,912.88x = 405,333,296,386,059.56
  5. Step 5: Solve for x
    x = 405,333,296,386,059.56/27,891,912.88
  6. Step 6: Final answer
    x = 14,532,287.48

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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.