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Finding the Fourth Proportional to 36,546.49, 50,435.61 and 20,631.49

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Solution

The fourth proportional to 36,546.49, 50,435.61 and 20,631.49 is: 28,472.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,546.49 : 50,435.61 = 20,631.49 : x
  2. Step 2: Convert to fraction form
    36,546.49/50,435.61 = 20,631.49/x
  3. Step 3: Cross multiply
    36,546.49x = 50,435.61 × 20,631.49
  4. Step 4: Simplify right side
    36,546.49x = 1,040,561,680.20
  5. Step 5: Solve for x
    x = 1,040,561,680.20/36,546.49
  6. Step 6: Final answer
    x = 28,472.27

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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.