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Finding the Fourth Proportional to 66,149.65, 91,286.15 and 35,934.73

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Solution

The fourth proportional to 66,149.65, 91,286.15 and 35,934.73 is: 49,589.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,149.65 : 91,286.15 = 35,934.73 : x
  2. Step 2: Convert to fraction form
    66,149.65/91,286.15 = 35,934.73/x
  3. Step 3: Cross multiply
    66,149.65x = 91,286.15 × 35,934.73
  4. Step 4: Simplify right side
    66,149.65x = 3,280,343,152.99
  5. Step 5: Solve for x
    x = 3,280,343,152.99/66,149.65
  6. Step 6: Final answer
    x = 49,589.73

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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.