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Finding the Fourth Proportional to 36,824.42, 50,818.03 and 20,909.21

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Solution

The fourth proportional to 36,824.42, 50,818.03 and 20,909.21 is: 28,854.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,824.42 : 50,818.03 = 20,909.21 : x
  2. Step 2: Convert to fraction form
    36,824.42/50,818.03 = 20,909.21/x
  3. Step 3: Cross multiply
    36,824.42x = 50,818.03 × 20,909.21
  4. Step 4: Simplify right side
    36,824.42x = 1,062,564,672.31
  5. Step 5: Solve for x
    x = 1,062,564,672.31/36,824.42
  6. Step 6: Final answer
    x = 28,854.89

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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.