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Finding the Fourth Proportional to 64,447.92, 96,632.94 and 28,902.78

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Solution

The fourth proportional to 64,447.92, 96,632.94 and 28,902.78 is: 43,336.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,447.92 : 96,632.94 = 28,902.78 : x
  2. Step 2: Convert to fraction form
    64,447.92/96,632.94 = 28,902.78/x
  3. Step 3: Cross multiply
    64,447.92x = 96,632.94 × 28,902.78
  4. Step 4: Simplify right side
    64,447.92x = 2,792,960,605.57
  5. Step 5: Solve for x
    x = 2,792,960,605.57/64,447.92
  6. Step 6: Final answer
    x = 43,336.71

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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.