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Finding the Fourth Proportional to 17,383.68, 23,979.24 and 11,099.16

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Solution

The fourth proportional to 17,383.68, 23,979.24 and 11,099.16 is: 15,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,383.68 : 23,979.24 = 11,099.16 : x
  2. Step 2: Convert to fraction form
    17,383.68/23,979.24 = 11,099.16/x
  3. Step 3: Cross multiply
    17,383.68x = 23,979.24 × 11,099.16
  4. Step 4: Simplify right side
    17,383.68x = 266,149,421.44
  5. Step 5: Solve for x
    x = 266,149,421.44/17,383.68
  6. Step 6: Final answer
    x = 15,310.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.