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Finding the Fourth Proportional to 18,018.56, 24,863.28 and 11,739.44

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Solution

The fourth proportional to 18,018.56, 24,863.28 and 11,739.44 is: 16,198.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.56 : 24,863.28 = 11,739.44 : x
  2. Step 2: Convert to fraction form
    18,018.56/24,863.28 = 11,739.44/x
  3. Step 3: Cross multiply
    18,018.56x = 24,863.28 × 11,739.44
  4. Step 4: Simplify right side
    18,018.56x = 291,880,983.76
  5. Step 5: Solve for x
    x = 291,880,983.76/18,018.56
  6. Step 6: Final answer
    x = 16,198.91

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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.