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Finding the Fourth Proportional to 36,647.94, 50,573.52 and 20,731.98

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Solution

The fourth proportional to 36,647.94, 50,573.52 and 20,731.98 is: 28,609.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,647.94 : 50,573.52 = 20,731.98 : x
  2. Step 2: Convert to fraction form
    36,647.94/50,573.52 = 20,731.98/x
  3. Step 3: Cross multiply
    36,647.94x = 50,573.52 × 20,731.98
  4. Step 4: Simplify right side
    36,647.94x = 1,048,489,205.17
  5. Step 5: Solve for x
    x = 1,048,489,205.17/36,647.94
  6. Step 6: Final answer
    x = 28,609.77

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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.