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Finding the Fourth Proportional to 36,798.66, 50,780.70 and 20,882.79

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Solution

The fourth proportional to 36,798.66, 50,780.70 and 20,882.79 is: 28,817.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,798.66 : 50,780.70 = 20,882.79 : x
  2. Step 2: Convert to fraction form
    36,798.66/50,780.70 = 20,882.79/x
  3. Step 3: Cross multiply
    36,798.66x = 50,780.70 × 20,882.79
  4. Step 4: Simplify right side
    36,798.66x = 1,060,442,694.15
  5. Step 5: Solve for x
    x = 1,060,442,694.15/36,798.66
  6. Step 6: Final answer
    x = 28,817.43

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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.