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Finding the Fourth Proportional to 36,884.40, 50,900.74 and 20,968.86

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Solution

The fourth proportional to 36,884.40, 50,900.74 and 20,968.86 is: 28,937.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,884.40 : 50,900.74 = 20,968.86 : x
  2. Step 2: Convert to fraction form
    36,884.40/50,900.74 = 20,968.86/x
  3. Step 3: Cross multiply
    36,884.40x = 50,900.74 × 20,968.86
  4. Step 4: Simplify right side
    36,884.40x = 1,067,330,490.96
  5. Step 5: Solve for x
    x = 1,067,330,490.96/36,884.40
  6. Step 6: Final answer
    x = 28,937.18

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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.