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Finding the Fourth Proportional to 66,706.68, 92,057.40 and 36,491.31

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Solution

The fourth proportional to 66,706.68, 92,057.40 and 36,491.31 is: 50,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,706.68 : 92,057.40 = 36,491.31 : x
  2. Step 2: Convert to fraction form
    66,706.68/92,057.40 = 36,491.31/x
  3. Step 3: Cross multiply
    66,706.68x = 92,057.40 × 36,491.31
  4. Step 4: Simplify right side
    66,706.68x = 3,359,295,121.19
  5. Step 5: Solve for x
    x = 3,359,295,121.19/66,706.68
  6. Step 6: Final answer
    x = 50,359.20

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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.