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Finding the Fourth Proportional to 64,661.71, 89,233.14 and 36,367.38

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Solution

The fourth proportional to 64,661.71, 89,233.14 and 36,367.38 is: 50,186.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,661.71 : 89,233.14 = 36,367.38 : x
  2. Step 2: Convert to fraction form
    64,661.71/89,233.14 = 36,367.38/x
  3. Step 3: Cross multiply
    64,661.71x = 89,233.14 × 36,367.38
  4. Step 4: Simplify right side
    64,661.71x = 3,245,175,510.97
  5. Step 5: Solve for x
    x = 3,245,175,510.97/64,661.71
  6. Step 6: Final answer
    x = 50,186.97

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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.