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Finding the Fourth Proportional to 18,153.97, 27,235.81 and 16,418.95

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Solution

The fourth proportional to 18,153.97, 27,235.81 and 16,418.95 is: 24,632.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.97 : 27,235.81 = 16,418.95 : x
  2. Step 2: Convert to fraction form
    18,153.97/27,235.81 = 16,418.95/x
  3. Step 3: Cross multiply
    18,153.97x = 27,235.81 × 16,418.95
  4. Step 4: Simplify right side
    18,153.97x = 447,183,402.60
  5. Step 5: Solve for x
    x = 447,183,402.60/18,153.97
  6. Step 6: Final answer
    x = 24,632.82

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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.