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Finding the Fourth Proportional to 18,573.22, 27,863.92 and 6,886.44

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Solution

The fourth proportional to 18,573.22, 27,863.92 and 6,886.44 is: 10,331.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.22 : 27,863.92 = 6,886.44 : x
  2. Step 2: Convert to fraction form
    18,573.22/27,863.92 = 6,886.44/x
  3. Step 3: Cross multiply
    18,573.22x = 27,863.92 × 6,886.44
  4. Step 4: Simplify right side
    18,573.22x = 191,883,213.24
  5. Step 5: Solve for x
    x = 191,883,213.24/18,573.22
  6. Step 6: Final answer
    x = 10,331.18

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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.