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Finding the Fourth Proportional to 36,781.75, 55,173.44 and 9,079.75

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Solution

The fourth proportional to 36,781.75, 55,173.44 and 9,079.75 is: 13,619.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,781.75 : 55,173.44 = 9,079.75 : x
  2. Step 2: Convert to fraction form
    36,781.75/55,173.44 = 9,079.75/x
  3. Step 3: Cross multiply
    36,781.75x = 55,173.44 × 9,079.75
  4. Step 4: Simplify right side
    36,781.75x = 500,961,041.84
  5. Step 5: Solve for x
    x = 500,961,041.84/36,781.75
  6. Step 6: Final answer
    x = 13,619.83

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1.5x scale

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.