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Finding the Fourth Proportional to 71,183.62, 98,234.04 and 38,919.16

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Solution

The fourth proportional to 71,183.62, 98,234.04 and 38,919.16 is: 53,708.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,183.62 : 98,234.04 = 38,919.16 : x
  2. Step 2: Convert to fraction form
    71,183.62/98,234.04 = 38,919.16/x
  3. Step 3: Cross multiply
    71,183.62x = 98,234.04 × 38,919.16
  4. Step 4: Simplify right side
    71,183.62x = 3,823,186,320.21
  5. Step 5: Solve for x
    x = 3,823,186,320.21/71,183.62
  6. Step 6: Final answer
    x = 53,708.79

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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.