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Finding the Fourth Proportional to 18,553.55, 27,835.44 and 8,019.05

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Solution

The fourth proportional to 18,553.55, 27,835.44 and 8,019.05 is: 12,030.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.55 : 27,835.44 = 8,019.05 : x
  2. Step 2: Convert to fraction form
    18,553.55/27,835.44 = 8,019.05/x
  3. Step 3: Cross multiply
    18,553.55x = 27,835.44 × 8,019.05
  4. Step 4: Simplify right side
    18,553.55x = 223,213,645.95
  5. Step 5: Solve for x
    x = 223,213,645.95/18,553.55
  6. Step 6: Final answer
    x = 12,030.78

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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.