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Finding the Fourth Proportional to 66,845.98, 92,245.97 and 36,630.64

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Solution

The fourth proportional to 66,845.98, 92,245.97 and 36,630.64 is: 50,549.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,845.98 : 92,245.97 = 36,630.64 : x
  2. Step 2: Convert to fraction form
    66,845.98/92,245.97 = 36,630.64/x
  3. Step 3: Cross multiply
    66,845.98x = 92,245.97 × 36,630.64
  4. Step 4: Simplify right side
    66,845.98x = 3,379,028,274.14
  5. Step 5: Solve for x
    x = 3,379,028,274.14/66,845.98
  6. Step 6: Final answer
    x = 50,549.47

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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.