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Finding the Fourth Proportional to 12,573.82, 18,863.43 and 4,253.44

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Solution

The fourth proportional to 12,573.82, 18,863.43 and 4,253.44 is: 6,381.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.82 : 18,863.43 = 4,253.44 : x
  2. Step 2: Convert to fraction form
    12,573.82/18,863.43 = 4,253.44/x
  3. Step 3: Cross multiply
    12,573.82x = 18,863.43 × 4,253.44
  4. Step 4: Simplify right side
    12,573.82x = 80,234,467.70
  5. Step 5: Solve for x
    x = 80,234,467.70/12,573.82
  6. Step 6: Final answer
    x = 6,381.07

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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.