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Finding the Fourth Proportional to 8,028.64, 11,073.96 and 7,367.68

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Solution

The fourth proportional to 8,028.64, 11,073.96 and 7,367.68 is: 10,162.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,028.64 : 11,073.96 = 7,367.68 : x
  2. Step 2: Convert to fraction form
    8,028.64/11,073.96 = 7,367.68/x
  3. Step 3: Cross multiply
    8,028.64x = 11,073.96 × 7,367.68
  4. Step 4: Simplify right side
    8,028.64x = 81,589,393.61
  5. Step 5: Solve for x
    x = 81,589,393.61/8,028.64
  6. Step 6: Final answer
    x = 10,162.29

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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.