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Finding the Fourth Proportional to 36,759.30, 50,737.09 and 20,853.30

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Solution

The fourth proportional to 36,759.30, 50,737.09 and 20,853.30 is: 28,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,759.30 : 50,737.09 = 20,853.30 : x
  2. Step 2: Convert to fraction form
    36,759.30/50,737.09 = 20,853.30/x
  3. Step 3: Cross multiply
    36,759.30x = 50,737.09 × 20,853.30
  4. Step 4: Simplify right side
    36,759.30x = 1,058,035,758.90
  5. Step 5: Solve for x
    x = 1,058,035,758.90/36,759.30
  6. Step 6: Final answer
    x = 28,782.80

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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.