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Finding the Fourth Proportional to 27,773.99, 41,611.78 and 18,965.85

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Solution

The fourth proportional to 27,773.99, 41,611.78 and 18,965.85 is: 28,415.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,773.99 : 41,611.78 = 18,965.85 : x
  2. Step 2: Convert to fraction form
    27,773.99/41,611.78 = 18,965.85/x
  3. Step 3: Cross multiply
    27,773.99x = 41,611.78 × 18,965.85
  4. Step 4: Simplify right side
    27,773.99x = 789,202,538.69
  5. Step 5: Solve for x
    x = 789,202,538.69/27,773.99
  6. Step 6: Final answer
    x = 28,415.17

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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.