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Finding the Fourth Proportional to 66,156.94, 91,297.61 and 35,942.86

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Solution

The fourth proportional to 66,156.94, 91,297.61 and 35,942.86 is: 49,601.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,156.94 : 91,297.61 = 35,942.86 : x
  2. Step 2: Convert to fraction form
    66,156.94/91,297.61 = 35,942.86/x
  3. Step 3: Cross multiply
    66,156.94x = 91,297.61 × 35,942.86
  4. Step 4: Simplify right side
    66,156.94x = 3,281,497,214.56
  5. Step 5: Solve for x
    x = 3,281,497,214.56/66,156.94
  6. Step 6: Final answer
    x = 49,601.71

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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.