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Finding the Fourth Proportional to 17,086.18, 25,629.11 and 5,399.40

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Solution

The fourth proportional to 17,086.18, 25,629.11 and 5,399.40 is: 8,099.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,086.18 : 25,629.11 = 5,399.40 : x
  2. Step 2: Convert to fraction form
    17,086.18/25,629.11 = 5,399.40/x
  3. Step 3: Cross multiply
    17,086.18x = 25,629.11 × 5,399.40
  4. Step 4: Simplify right side
    17,086.18x = 138,381,830.03
  5. Step 5: Solve for x
    x = 138,381,830.03/17,086.18
  6. Step 6: Final answer
    x = 8,099.05

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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.