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Finding the Fourth Proportional to 64,425.09, 88,906.74 and 35,743.86

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Solution

The fourth proportional to 64,425.09, 88,906.74 and 35,743.86 is: 49,326.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,425.09 : 88,906.74 = 35,743.86 : x
  2. Step 2: Convert to fraction form
    64,425.09/88,906.74 = 35,743.86/x
  3. Step 3: Cross multiply
    64,425.09x = 88,906.74 × 35,743.86
  4. Step 4: Simplify right side
    64,425.09x = 3,177,870,067.62
  5. Step 5: Solve for x
    x = 3,177,870,067.62/64,425.09
  6. Step 6: Final answer
    x = 49,326.59

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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.