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Finding the Fourth Proportional to 66,263.73, 91,446.47 and 37,974.89

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Solution

The fourth proportional to 66,263.73, 91,446.47 and 37,974.89 is: 52,406.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,263.73 : 91,446.47 = 37,974.89 : x
  2. Step 2: Convert to fraction form
    66,263.73/91,446.47 = 37,974.89/x
  3. Step 3: Cross multiply
    66,263.73x = 91,446.47 × 37,974.89
  4. Step 4: Simplify right side
    66,263.73x = 3,472,668,992.03
  5. Step 5: Solve for x
    x = 3,472,668,992.03/66,263.73
  6. Step 6: Final answer
    x = 52,406.78

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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.