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Finding the Fourth Proportional to 18,603.94, 27,893.80 and 6,755.49

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Solution

The fourth proportional to 18,603.94, 27,893.80 and 6,755.49 is: 10,128.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603.94 : 27,893.80 = 6,755.49 : x
  2. Step 2: Convert to fraction form
    18,603.94/27,893.80 = 6,755.49/x
  3. Step 3: Cross multiply
    18,603.94x = 27,893.80 × 6,755.49
  4. Step 4: Simplify right side
    18,603.94x = 188,436,286.96
  5. Step 5: Solve for x
    x = 188,436,286.96/18,603.94
  6. Step 6: Final answer
    x = 10,128.84

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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.