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Finding the Fourth Proportional to 18,482.50, 27,723.99 and 6,170.50

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Solution

The fourth proportional to 18,482.50, 27,723.99 and 6,170.50 is: 9,255.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.50 : 27,723.99 = 6,170.50 : x
  2. Step 2: Convert to fraction form
    18,482.50/27,723.99 = 6,170.50/x
  3. Step 3: Cross multiply
    18,482.50x = 27,723.99 × 6,170.50
  4. Step 4: Simplify right side
    18,482.50x = 171,070,880.30
  5. Step 5: Solve for x
    x = 171,070,880.30/18,482.50
  6. Step 6: Final answer
    x = 9,255.83

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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.