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Finding the Fourth Proportional to 34,893.64, 48,137.34 and 20,738.44

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Solution

The fourth proportional to 34,893.64, 48,137.34 and 20,738.44 is: 28,609.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,893.64 : 48,137.34 = 20,738.44 : x
  2. Step 2: Convert to fraction form
    34,893.64/48,137.34 = 20,738.44/x
  3. Step 3: Cross multiply
    34,893.64x = 48,137.34 × 20,738.44
  4. Step 4: Simplify right side
    34,893.64x = 998,293,337.35
  5. Step 5: Solve for x
    x = 998,293,337.35/34,893.64
  6. Step 6: Final answer
    x = 28,609.61

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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.