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Finding the Fourth Proportional to 66,461.41, 91,715.61 and 36,246.97

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Solution

The fourth proportional to 66,461.41, 91,715.61 and 36,246.97 is: 50,020.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,461.41 : 91,715.61 = 36,246.97 : x
  2. Step 2: Convert to fraction form
    66,461.41/91,715.61 = 36,246.97/x
  3. Step 3: Cross multiply
    66,461.41x = 91,715.61 × 36,246.97
  4. Step 4: Simplify right side
    66,461.41x = 3,324,412,964.20
  5. Step 5: Solve for x
    x = 3,324,412,964.20/66,461.41
  6. Step 6: Final answer
    x = 50,020.20

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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.