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Finding the Fourth Proportional to 36,717.66, 50,671.28 and 21,611.11

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Solution

The fourth proportional to 36,717.66, 50,671.28 and 21,611.11 is: 29,823.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,717.66 : 50,671.28 = 21,611.11 : x
  2. Step 2: Convert to fraction form
    36,717.66/50,671.28 = 21,611.11/x
  3. Step 3: Cross multiply
    36,717.66x = 50,671.28 × 21,611.11
  4. Step 4: Simplify right side
    36,717.66x = 1,095,062,605.92
  5. Step 5: Solve for x
    x = 1,095,062,605.92/36,717.66
  6. Step 6: Final answer
    x = 29,823.87

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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.