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Finding the Fourth Proportional to 36,575.76, 50,471.76 and 20,661.84

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Solution

The fourth proportional to 36,575.76, 50,471.76 and 20,661.84 is: 28,511.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,575.76 : 50,471.76 = 20,661.84 : x
  2. Step 2: Convert to fraction form
    36,575.76/50,471.76 = 20,661.84/x
  3. Step 3: Cross multiply
    36,575.76x = 50,471.76 × 20,661.84
  4. Step 4: Simplify right side
    36,575.76x = 1,042,839,429.64
  5. Step 5: Solve for x
    x = 1,042,839,429.64/36,575.76
  6. Step 6: Final answer
    x = 28,511.76

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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.