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Finding the Fourth Proportional to 66,471.44, 91,732.58 and 36,258.49

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Solution

The fourth proportional to 66,471.44, 91,732.58 and 36,258.49 is: 50,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,471.44 : 91,732.58 = 36,258.49 : x
  2. Step 2: Convert to fraction form
    66,471.44/91,732.58 = 36,258.49/x
  3. Step 3: Cross multiply
    66,471.44x = 91,732.58 × 36,258.49
  4. Step 4: Simplify right side
    66,471.44x = 3,326,084,285.97
  5. Step 5: Solve for x
    x = 3,326,084,285.97/66,471.44
  6. Step 6: Final answer
    x = 50,037.80

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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.