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Finding the Fourth Proportional to 63,633.09, 87,821.42 and 36,775.82

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Solution

The fourth proportional to 63,633.09, 87,821.42 and 36,775.82 is: 50,755.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,633.09 : 87,821.42 = 36,775.82 : x
  2. Step 2: Convert to fraction form
    63,633.09/87,821.42 = 36,775.82/x
  3. Step 3: Cross multiply
    63,633.09x = 87,821.42 × 36,775.82
  4. Step 4: Simplify right side
    63,633.09x = 3,229,704,769.74
  5. Step 5: Solve for x
    x = 3,229,704,769.74/63,633.09
  6. Step 6: Final answer
    x = 50,755.11

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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.