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Finding the Fourth Proportional to 18,338.88, 27,512.80 and 5,859.84

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Solution

The fourth proportional to 18,338.88, 27,512.80 and 5,859.84 is: 8,791.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.88 : 27,512.80 = 5,859.84 : x
  2. Step 2: Convert to fraction form
    18,338.88/27,512.80 = 5,859.84/x
  3. Step 3: Cross multiply
    18,338.88x = 27,512.80 × 5,859.84
  4. Step 4: Simplify right side
    18,338.88x = 161,220,605.95
  5. Step 5: Solve for x
    x = 161,220,605.95/18,338.88
  6. Step 6: Final answer
    x = 8,791.19

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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.