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Finding the Fourth Proportional to 36,728.30, 50,685.05 and 19,961.30

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Solution

The fourth proportional to 36,728.30, 50,685.05 and 19,961.30 is: 27,546.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,728.30 : 50,685.05 = 19,961.30 : x
  2. Step 2: Convert to fraction form
    36,728.30/50,685.05 = 19,961.30/x
  3. Step 3: Cross multiply
    36,728.30x = 50,685.05 × 19,961.30
  4. Step 4: Simplify right side
    36,728.30x = 1,011,739,665.18
  5. Step 5: Solve for x
    x = 1,011,739,665.18/36,728.30
  6. Step 6: Final answer
    x = 27,546.59

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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.