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Finding the Fourth Proportional to 67,121.62, 100,760.20 and 36,017.62

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Solution

The fourth proportional to 67,121.62, 100,760.20 and 36,017.62 is: 54,068.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,121.62 : 100,760.20 = 36,017.62 : x
  2. Step 2: Convert to fraction form
    67,121.62/100,760.20 = 36,017.62/x
  3. Step 3: Cross multiply
    67,121.62x = 100,760.20 × 36,017.62
  4. Step 4: Simplify right side
    67,121.62x = 3,629,142,594.72
  5. Step 5: Solve for x
    x = 3,629,142,594.72/67,121.62
  6. Step 6: Final answer
    x = 54,068.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.