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Finding the Fourth Proportional to 36,882.97, 50,898.66 and 20,970.74

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Solution

The fourth proportional to 36,882.97, 50,898.66 and 20,970.74 is: 28,939.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,882.97 : 50,898.66 = 20,970.74 : x
  2. Step 2: Convert to fraction form
    36,882.97/50,898.66 = 20,970.74/x
  3. Step 3: Cross multiply
    36,882.97x = 50,898.66 × 20,970.74
  4. Step 4: Simplify right side
    36,882.97x = 1,067,382,565.21
  5. Step 5: Solve for x
    x = 1,067,382,565.21/36,882.97
  6. Step 6: Final answer
    x = 28,939.71

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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.