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Finding the Fourth Proportional to 76,800.71, 115,183.77 and 27,552.71

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Solution

The fourth proportional to 76,800.71, 115,183.77 and 27,552.71 is: 41,322.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,800.71 : 115,183.77 = 27,552.71 : x
  2. Step 2: Convert to fraction form
    76,800.71/115,183.77 = 27,552.71/x
  3. Step 3: Cross multiply
    76,800.71x = 115,183.77 × 27,552.71
  4. Step 4: Simplify right side
    76,800.71x = 3,173,624,435.60
  5. Step 5: Solve for x
    x = 3,173,624,435.60/76,800.71
  6. Step 6: Final answer
    x = 41,322.86

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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.