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Finding the Fourth Proportional to 67,211.01, 100,816.52 and 27,769.14

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Solution

The fourth proportional to 67,211.01, 100,816.52 and 27,769.14 is: 41,653.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,211.01 : 100,816.52 = 27,769.14 : x
  2. Step 2: Convert to fraction form
    67,211.01/100,816.52 = 27,769.14/x
  3. Step 3: Cross multiply
    67,211.01x = 100,816.52 × 27,769.14
  4. Step 4: Simplify right side
    67,211.01x = 2,799,587,919.35
  5. Step 5: Solve for x
    x = 2,799,587,919.35/67,211.01
  6. Step 6: Final answer
    x = 41,653.71

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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.