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Finding the Fourth Proportional to 66,538.56, 91,821.84 and 36,324.48

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Solution

The fourth proportional to 66,538.56, 91,821.84 and 36,324.48 is: 50,127.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,538.56 : 91,821.84 = 36,324.48 : x
  2. Step 2: Convert to fraction form
    66,538.56/91,821.84 = 36,324.48/x
  3. Step 3: Cross multiply
    66,538.56x = 91,821.84 × 36,324.48
  4. Step 4: Simplify right side
    66,538.56x = 3,335,380,590.64
  5. Step 5: Solve for x
    x = 3,335,380,590.64/66,538.56
  6. Step 6: Final answer
    x = 50,127.03

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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.