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Finding the Fourth Proportional to 49,015.75, 73,523.63 and 12,079.75

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Solution

The fourth proportional to 49,015.75, 73,523.63 and 12,079.75 is: 18,119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,015.75 : 73,523.63 = 12,079.75 : x
  2. Step 2: Convert to fraction form
    49,015.75/73,523.63 = 12,079.75/x
  3. Step 3: Cross multiply
    49,015.75x = 73,523.63 × 12,079.75
  4. Step 4: Simplify right side
    49,015.75x = 888,147,009.09
  5. Step 5: Solve for x
    x = 888,147,009.09/49,015.75
  6. Step 6: Final answer
    x = 18,119.63

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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.