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Finding the Fourth Proportional to 66,831.73, 92,227.75 and 36,618.97

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Solution

The fourth proportional to 66,831.73, 92,227.75 and 36,618.97 is: 50,534.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,831.73 : 92,227.75 = 36,618.97 : x
  2. Step 2: Convert to fraction form
    66,831.73/92,227.75 = 36,618.97/x
  3. Step 3: Cross multiply
    66,831.73x = 92,227.75 × 36,618.97
  4. Step 4: Simplify right side
    66,831.73x = 3,377,285,210.42
  5. Step 5: Solve for x
    x = 3,377,285,210.42/66,831.73
  6. Step 6: Final answer
    x = 50,534.16

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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.