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Finding the Fourth Proportional to 7,899,287.25, 11,851,200.60 and 3,287,375.88

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Solution

The fourth proportional to 7,899,287.25, 11,851,200.60 and 3,287,375.88 is: 4,932,008.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899,287.25 : 11,851,200.60 = 3,287,375.88 : x
  2. Step 2: Convert to fraction form
    7,899,287.25/11,851,200.60 = 3,287,375.88/x
  3. Step 3: Cross multiply
    7,899,287.25x = 11,851,200.60 × 3,287,375.88
  4. Step 4: Simplify right side
    7,899,287.25x = 38,959,351,001,481.52
  5. Step 5: Solve for x
    x = 38,959,351,001,481.52/7,899,287.25
  6. Step 6: Final answer
    x = 4,932,008.39

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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.