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Finding the Fourth Proportional to 18,441.62, 27,690.04 and 10,553.04

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Solution

The fourth proportional to 18,441.62, 27,690.04 and 10,553.04 is: 15,845.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441.62 : 27,690.04 = 10,553.04 : x
  2. Step 2: Convert to fraction form
    18,441.62/27,690.04 = 10,553.04/x
  3. Step 3: Cross multiply
    18,441.62x = 27,690.04 × 10,553.04
  4. Step 4: Simplify right side
    18,441.62x = 292,214,099.72
  5. Step 5: Solve for x
    x = 292,214,099.72/18,441.62
  6. Step 6: Final answer
    x = 15,845.36

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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.