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Finding the Fourth Proportional to 66,940.56, 92,382.12 and 37,132.56

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Solution

The fourth proportional to 66,940.56, 92,382.12 and 37,132.56 is: 51,245.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,940.56 : 92,382.12 = 37,132.56 : x
  2. Step 2: Convert to fraction form
    66,940.56/92,382.12 = 37,132.56/x
  3. Step 3: Cross multiply
    66,940.56x = 92,382.12 × 37,132.56
  4. Step 4: Simplify right side
    66,940.56x = 3,430,384,613.83
  5. Step 5: Solve for x
    x = 3,430,384,613.83/66,940.56
  6. Step 6: Final answer
    x = 51,245.23

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1.5x scale

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.