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Finding the Fourth Proportional to 12,634.44, 18,951.12 and 3,274.44

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Solution

The fourth proportional to 12,634.44, 18,951.12 and 3,274.44 is: 4,911.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.44 : 18,951.12 = 3,274.44 : x
  2. Step 2: Convert to fraction form
    12,634.44/18,951.12 = 3,274.44/x
  3. Step 3: Cross multiply
    12,634.44x = 18,951.12 × 3,274.44
  4. Step 4: Simplify right side
    12,634.44x = 62,054,305.37
  5. Step 5: Solve for x
    x = 62,054,305.37/12,634.44
  6. Step 6: Final answer
    x = 4,911.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.