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Finding the Fourth Proportional to 17,149.55, 25,707.92 and 5,455.17

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Solution

The fourth proportional to 17,149.55, 25,707.92 and 5,455.17 is: 8,177.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,149.55 : 25,707.92 = 5,455.17 : x
  2. Step 2: Convert to fraction form
    17,149.55/25,707.92 = 5,455.17/x
  3. Step 3: Cross multiply
    17,149.55x = 25,707.92 × 5,455.17
  4. Step 4: Simplify right side
    17,149.55x = 140,241,046.67
  5. Step 5: Solve for x
    x = 140,241,046.67/17,149.55
  6. Step 6: Final answer
    x = 8,177.54

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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.