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Finding the Fourth Proportional to 17,161.99, 25,747.16 and 5,475.21

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Solution

The fourth proportional to 17,161.99, 25,747.16 and 5,475.21 is: 8,214.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,161.99 : 25,747.16 = 5,475.21 : x
  2. Step 2: Convert to fraction form
    17,161.99/25,747.16 = 5,475.21/x
  3. Step 3: Cross multiply
    17,161.99x = 25,747.16 × 5,475.21
  4. Step 4: Simplify right side
    17,161.99x = 140,971,107.90
  5. Step 5: Solve for x
    x = 140,971,107.90/17,161.99
  6. Step 6: Final answer
    x = 8,214.15

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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.