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Finding the Fourth Proportional to 66,754.74, 92,121.53 and 36,540.12

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Solution

The fourth proportional to 66,754.74, 92,121.53 and 36,540.12 is: 50,425.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,754.74 : 92,121.53 = 36,540.12 : x
  2. Step 2: Convert to fraction form
    66,754.74/92,121.53 = 36,540.12/x
  3. Step 3: Cross multiply
    66,754.74x = 92,121.53 × 36,540.12
  4. Step 4: Simplify right side
    66,754.74x = 3,366,131,578.08
  5. Step 5: Solve for x
    x = 3,366,131,578.08/66,754.74
  6. Step 6: Final answer
    x = 50,425.36

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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.