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Finding the Fourth Proportional to 66,540.88, 91,826.76 and 36,732.88

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Solution

The fourth proportional to 66,540.88, 91,826.76 and 36,732.88 is: 50,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,540.88 : 91,826.76 = 36,732.88 : x
  2. Step 2: Convert to fraction form
    66,540.88/91,826.76 = 36,732.88/x
  3. Step 3: Cross multiply
    66,540.88x = 91,826.76 × 36,732.88
  4. Step 4: Simplify right side
    66,540.88x = 3,373,061,355.87
  5. Step 5: Solve for x
    x = 3,373,061,355.87/66,540.88
  6. Step 6: Final answer
    x = 50,691.57

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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.