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Finding the Fourth Proportional to 36,858.68, 50,859.83 and 20,723.75

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Solution

The fourth proportional to 36,858.68, 50,859.83 and 20,723.75 is: 28,595.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,858.68 : 50,859.83 = 20,723.75 : x
  2. Step 2: Convert to fraction form
    36,858.68/50,859.83 = 20,723.75/x
  3. Step 3: Cross multiply
    36,858.68x = 50,859.83 × 20,723.75
  4. Step 4: Simplify right side
    36,858.68x = 1,054,006,390.20
  5. Step 5: Solve for x
    x = 1,054,006,390.20/36,858.68
  6. Step 6: Final answer
    x = 28,595.88

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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.