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Finding the Fourth Proportional to 18,944.98, 28,401.27 and 7,266.58

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Solution

The fourth proportional to 18,944.98, 28,401.27 and 7,266.58 is: 10,893.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944.98 : 28,401.27 = 7,266.58 : x
  2. Step 2: Convert to fraction form
    18,944.98/28,401.27 = 7,266.58/x
  3. Step 3: Cross multiply
    18,944.98x = 28,401.27 × 7,266.58
  4. Step 4: Simplify right side
    18,944.98x = 206,380,100.56
  5. Step 5: Solve for x
    x = 206,380,100.56/18,944.98
  6. Step 6: Final answer
    x = 10,893.66

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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.