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Finding the Fourth Proportional to 66,943.70, 92,383.24 and 36,728.46

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Solution

The fourth proportional to 66,943.70, 92,383.24 and 36,728.46 is: 50,685.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,943.70 : 92,383.24 = 36,728.46 : x
  2. Step 2: Convert to fraction form
    66,943.70/92,383.24 = 36,728.46/x
  3. Step 3: Cross multiply
    66,943.70x = 92,383.24 × 36,728.46
  4. Step 4: Simplify right side
    66,943.70x = 3,393,094,135.01
  5. Step 5: Solve for x
    x = 3,393,094,135.01/66,943.70
  6. Step 6: Final answer
    x = 50,685.79

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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.