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Finding the Fourth Proportional to 18,553.85, 27,845.81 and 9,193.49

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Solution

The fourth proportional to 18,553.85, 27,845.81 and 9,193.49 is: 13,797.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.85 : 27,845.81 = 9,193.49 : x
  2. Step 2: Convert to fraction form
    18,553.85/27,845.81 = 9,193.49/x
  3. Step 3: Cross multiply
    18,553.85x = 27,845.81 × 9,193.49
  4. Step 4: Simplify right side
    18,553.85x = 255,999,990.58
  5. Step 5: Solve for x
    x = 255,999,990.58/18,553.85
  6. Step 6: Final answer
    x = 13,797.68

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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.