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Finding the Fourth Proportional to 18,769.08, 28,083.15 and 11,244.99

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Solution

The fourth proportional to 18,769.08, 28,083.15 and 11,244.99 is: 16,825.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.08 : 28,083.15 = 11,244.99 : x
  2. Step 2: Convert to fraction form
    18,769.08/28,083.15 = 11,244.99/x
  3. Step 3: Cross multiply
    18,769.08x = 28,083.15 × 11,244.99
  4. Step 4: Simplify right side
    18,769.08x = 315,794,740.92
  5. Step 5: Solve for x
    x = 315,794,740.92/18,769.08
  6. Step 6: Final answer
    x = 16,825.26

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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.