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Finding the Fourth Proportional to 36,490.71, 50,357.14 and 19,723.71

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Solution

The fourth proportional to 36,490.71, 50,357.14 and 19,723.71 is: 27,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,490.71 : 50,357.14 = 19,723.71 : x
  2. Step 2: Convert to fraction form
    36,490.71/50,357.14 = 19,723.71/x
  3. Step 3: Cross multiply
    36,490.71x = 50,357.14 × 19,723.71
  4. Step 4: Simplify right side
    36,490.71x = 993,229,625.79
  5. Step 5: Solve for x
    x = 993,229,625.79/36,490.71
  6. Step 6: Final answer
    x = 27,218.70

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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.