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Finding the Fourth Proportional to 18,994.20, 28,492.02 and 5,667

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Solution

The fourth proportional to 18,994.20, 28,492.02 and 5,667 is: 8,500.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,994.20 : 28,492.02 = 5,667 : x
  2. Step 2: Convert to fraction form
    18,994.20/28,492.02 = 5,667/x
  3. Step 3: Cross multiply
    18,994.20x = 28,492.02 × 5,667
  4. Step 4: Simplify right side
    18,994.20x = 161,464,277.34
  5. Step 5: Solve for x
    x = 161,464,277.34/18,994.20
  6. Step 6: Final answer
    x = 8,500.71

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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.