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Finding the Fourth Proportional to 24,728.80, 37,076.80 and 13,640.80

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Solution

The fourth proportional to 24,728.80, 37,076.80 and 13,640.80 is: 20,452.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,728.80 : 37,076.80 = 13,640.80 : x
  2. Step 2: Convert to fraction form
    24,728.80/37,076.80 = 13,640.80/x
  3. Step 3: Cross multiply
    24,728.80x = 37,076.80 × 13,640.80
  4. Step 4: Simplify right side
    24,728.80x = 505,757,213.44
  5. Step 5: Solve for x
    x = 505,757,213.44/24,728.80
  6. Step 6: Final answer
    x = 20,452.15

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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.