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Finding the Fourth Proportional to 36,865.92, 50,878.62 and 21,763.56

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Solution

The fourth proportional to 36,865.92, 50,878.62 and 21,763.56 is: 30,035.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,865.92 : 50,878.62 = 21,763.56 : x
  2. Step 2: Convert to fraction form
    36,865.92/50,878.62 = 21,763.56/x
  3. Step 3: Cross multiply
    36,865.92x = 50,878.62 × 21,763.56
  4. Step 4: Simplify right side
    36,865.92x = 1,107,299,899.09
  5. Step 5: Solve for x
    x = 1,107,299,899.09/36,865.92
  6. Step 6: Final answer
    x = 30,035.87

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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.