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Finding the Fourth Proportional to 8,119.16, 12,162.92 and 5,337.34

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Solution

The fourth proportional to 8,119.16, 12,162.92 and 5,337.34 is: 7,995.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.16 : 12,162.92 = 5,337.34 : x
  2. Step 2: Convert to fraction form
    8,119.16/12,162.92 = 5,337.34/x
  3. Step 3: Cross multiply
    8,119.16x = 12,162.92 × 5,337.34
  4. Step 4: Simplify right side
    8,119.16x = 64,917,639.43
  5. Step 5: Solve for x
    x = 64,917,639.43/8,119.16
  6. Step 6: Final answer
    x = 7,995.61

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.