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Finding the Fourth Proportional to 64,600.62, 89,148.94 and 35,919.97

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Solution

The fourth proportional to 64,600.62, 89,148.94 and 35,919.97 is: 49,569.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,600.62 : 89,148.94 = 35,919.97 : x
  2. Step 2: Convert to fraction form
    64,600.62/89,148.94 = 35,919.97/x
  3. Step 3: Cross multiply
    64,600.62x = 89,148.94 × 35,919.97
  4. Step 4: Simplify right side
    64,600.62x = 3,202,227,439.12
  5. Step 5: Solve for x
    x = 3,202,227,439.12/64,600.62
  6. Step 6: Final answer
    x = 49,569.61

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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.