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Finding the Fourth Proportional to 66,793.65, 92,174.94 and 36,578.88

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Solution

The fourth proportional to 66,793.65, 92,174.94 and 36,578.88 is: 50,478.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,793.65 : 92,174.94 = 36,578.88 : x
  2. Step 2: Convert to fraction form
    66,793.65/92,174.94 = 36,578.88/x
  3. Step 3: Cross multiply
    66,793.65x = 92,174.94 × 36,578.88
  4. Step 4: Simplify right side
    66,793.65x = 3,371,656,069.27
  5. Step 5: Solve for x
    x = 3,371,656,069.27/66,793.65
  6. Step 6: Final answer
    x = 50,478.69

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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.