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Finding the Fourth Proportional to 66,461.44, 91,717.54 and 36,246.46

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Solution

The fourth proportional to 66,461.44, 91,717.54 and 36,246.46 is: 50,020.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,461.44 : 91,717.54 = 36,246.46 : x
  2. Step 2: Convert to fraction form
    66,461.44/91,717.54 = 36,246.46/x
  3. Step 3: Cross multiply
    66,461.44x = 91,717.54 × 36,246.46
  4. Step 4: Simplify right side
    66,461.44x = 3,324,436,144.91
  5. Step 5: Solve for x
    x = 3,324,436,144.91/66,461.44
  6. Step 6: Final answer
    x = 50,020.53

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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.