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Finding the Fourth Proportional to 18,654.84, 27,845.78 and 16,440.57

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Solution

The fourth proportional to 18,654.84, 27,845.78 and 16,440.57 is: 24,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.84 : 27,845.78 = 16,440.57 : x
  2. Step 2: Convert to fraction form
    18,654.84/27,845.78 = 16,440.57/x
  3. Step 3: Cross multiply
    18,654.84x = 27,845.78 × 16,440.57
  4. Step 4: Simplify right side
    18,654.84x = 457,800,413.09
  5. Step 5: Solve for x
    x = 457,800,413.09/18,654.84
  6. Step 6: Final answer
    x = 24,540.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.