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Finding the Fourth Proportional to 36,692.75, 55,039.26 and 8,990.75

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Solution

The fourth proportional to 36,692.75, 55,039.26 and 8,990.75 is: 13,486.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,692.75 : 55,039.26 = 8,990.75 : x
  2. Step 2: Convert to fraction form
    36,692.75/55,039.26 = 8,990.75/x
  3. Step 3: Cross multiply
    36,692.75x = 55,039.26 × 8,990.75
  4. Step 4: Simplify right side
    36,692.75x = 494,844,226.85
  5. Step 5: Solve for x
    x = 494,844,226.85/36,692.75
  6. Step 6: Final answer
    x = 13,486.16

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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.