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Finding the Fourth Proportional to 66,472.46, 91,732.28 and 36,258.44

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Solution

The fourth proportional to 66,472.46, 91,732.28 and 36,258.44 is: 50,036.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472.46 : 91,732.28 = 36,258.44 : x
  2. Step 2: Convert to fraction form
    66,472.46/91,732.28 = 36,258.44/x
  3. Step 3: Cross multiply
    66,472.46x = 91,732.28 × 36,258.44
  4. Step 4: Simplify right side
    66,472.46x = 3,326,068,934.44
  5. Step 5: Solve for x
    x = 3,326,068,934.44/66,472.46
  6. Step 6: Final answer
    x = 50,036.79

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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.