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Finding the Fourth Proportional to 36,990.92, 55,489.08 and 10,695.80

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Solution

The fourth proportional to 36,990.92, 55,489.08 and 10,695.80 is: 16,044.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,990.92 : 55,489.08 = 10,695.80 : x
  2. Step 2: Convert to fraction form
    36,990.92/55,489.08 = 10,695.80/x
  3. Step 3: Cross multiply
    36,990.92x = 55,489.08 × 10,695.80
  4. Step 4: Simplify right side
    36,990.92x = 593,500,101.86
  5. Step 5: Solve for x
    x = 593,500,101.86/36,990.92
  6. Step 6: Final answer
    x = 16,044.48

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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.