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Finding the Fourth Proportional to 36,751.41, 50,715.45 and 21,644.70

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Solution

The fourth proportional to 36,751.41, 50,715.45 and 21,644.70 is: 29,868.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,751.41 : 50,715.45 = 21,644.70 : x
  2. Step 2: Convert to fraction form
    36,751.41/50,715.45 = 21,644.70/x
  3. Step 3: Cross multiply
    36,751.41x = 50,715.45 × 21,644.70
  4. Step 4: Simplify right side
    36,751.41x = 1,097,720,700.62
  5. Step 5: Solve for x
    x = 1,097,720,700.62/36,751.41
  6. Step 6: Final answer
    x = 29,868.81

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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.