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Finding the Fourth Proportional to 36,608.80, 54,915.90 and 13,232.20

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Solution

The fourth proportional to 36,608.80, 54,915.90 and 13,232.20 is: 19,849.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,608.80 : 54,915.90 = 13,232.20 : x
  2. Step 2: Convert to fraction form
    36,608.80/54,915.90 = 13,232.20/x
  3. Step 3: Cross multiply
    36,608.80x = 54,915.90 × 13,232.20
  4. Step 4: Simplify right side
    36,608.80x = 726,658,171.98
  5. Step 5: Solve for x
    x = 726,658,171.98/36,608.80
  6. Step 6: Final answer
    x = 19,849.28

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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.