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Finding the Fourth Proportional to 36,590.84, 50,489.78 and 20,669.48

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Solution

The fourth proportional to 36,590.84, 50,489.78 and 20,669.48 is: 28,520.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,590.84 : 50,489.78 = 20,669.48 : x
  2. Step 2: Convert to fraction form
    36,590.84/50,489.78 = 20,669.48/x
  3. Step 3: Cross multiply
    36,590.84x = 50,489.78 × 20,669.48
  4. Step 4: Simplify right side
    36,590.84x = 1,043,597,447.72
  5. Step 5: Solve for x
    x = 1,043,597,447.72/36,590.84
  6. Step 6: Final answer
    x = 28,520.73

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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.