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Finding the Fourth Proportional to 66,274.98, 91,456.72 and 36,060.42

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Solution

The fourth proportional to 66,274.98, 91,456.72 and 36,060.42 is: 49,761.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,274.98 : 91,456.72 = 36,060.42 : x
  2. Step 2: Convert to fraction form
    66,274.98/91,456.72 = 36,060.42/x
  3. Step 3: Cross multiply
    66,274.98x = 91,456.72 × 36,060.42
  4. Step 4: Simplify right side
    66,274.98x = 3,297,967,735.02
  5. Step 5: Solve for x
    x = 3,297,967,735.02/66,274.98
  6. Step 6: Final answer
    x = 49,761.88

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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.