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Finding the Fourth Proportional to 18,577.81, 27,860.23 and 8,183.89

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Solution

The fourth proportional to 18,577.81, 27,860.23 and 8,183.89 is: 12,272.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,577.81 : 27,860.23 = 8,183.89 : x
  2. Step 2: Convert to fraction form
    18,577.81/27,860.23 = 8,183.89/x
  3. Step 3: Cross multiply
    18,577.81x = 27,860.23 × 8,183.89
  4. Step 4: Simplify right side
    18,577.81x = 228,005,057.69
  5. Step 5: Solve for x
    x = 228,005,057.69/18,577.81
  6. Step 6: Final answer
    x = 12,272.98

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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.