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Finding the Fourth Proportional to 36,692.70, 50,638.74 and 20,559.21

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Solution

The fourth proportional to 36,692.70, 50,638.74 and 20,559.21 is: 28,373.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,692.70 : 50,638.74 = 20,559.21 : x
  2. Step 2: Convert to fraction form
    36,692.70/50,638.74 = 20,559.21/x
  3. Step 3: Cross multiply
    36,692.70x = 50,638.74 × 20,559.21
  4. Step 4: Simplify right side
    36,692.70x = 1,041,092,489.80
  5. Step 5: Solve for x
    x = 1,041,092,489.80/36,692.70
  6. Step 6: Final answer
    x = 28,373.29

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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.