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Finding the Fourth Proportional to 18,561.16, 27,791.52 and 13,593.16

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Solution

The fourth proportional to 18,561.16, 27,791.52 and 13,593.16 is: 20,352.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,561.16 : 27,791.52 = 13,593.16 : x
  2. Step 2: Convert to fraction form
    18,561.16/27,791.52 = 13,593.16/x
  3. Step 3: Cross multiply
    18,561.16x = 27,791.52 × 13,593.16
  4. Step 4: Simplify right side
    18,561.16x = 377,774,578.00
  5. Step 5: Solve for x
    x = 377,774,578.00/18,561.16
  6. Step 6: Final answer
    x = 20,352.96

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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.