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Finding the Fourth Proportional to 8,262.72, 11,392.92 and 6,163.20

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Solution

The fourth proportional to 8,262.72, 11,392.92 and 6,163.20 is: 8,498.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,262.72 : 11,392.92 = 6,163.20 : x
  2. Step 2: Convert to fraction form
    8,262.72/11,392.92 = 6,163.20/x
  3. Step 3: Cross multiply
    8,262.72x = 11,392.92 × 6,163.20
  4. Step 4: Simplify right side
    8,262.72x = 70,216,844.54
  5. Step 5: Solve for x
    x = 70,216,844.54/8,262.72
  6. Step 6: Final answer
    x = 8,498.03

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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.