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Finding the Fourth Proportional to 8,481.25, 11,704.13 and 5,169.25

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Solution

The fourth proportional to 8,481.25, 11,704.13 and 5,169.25 is: 7,133.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.25 : 11,704.13 = 5,169.25 : x
  2. Step 2: Convert to fraction form
    8,481.25/11,704.13 = 5,169.25/x
  3. Step 3: Cross multiply
    8,481.25x = 11,704.13 × 5,169.25
  4. Step 4: Simplify right side
    8,481.25x = 60,501,574.00
  5. Step 5: Solve for x
    x = 60,501,574.00/8,481.25
  6. Step 6: Final answer
    x = 7,133.57

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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.