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Finding the Fourth Proportional to 18,279.96, 25,226.15 and 10,321.98

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Solution

The fourth proportional to 18,279.96, 25,226.15 and 10,321.98 is: 14,244.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.96 : 25,226.15 = 10,321.98 : x
  2. Step 2: Convert to fraction form
    18,279.96/25,226.15 = 10,321.98/x
  3. Step 3: Cross multiply
    18,279.96x = 25,226.15 × 10,321.98
  4. Step 4: Simplify right side
    18,279.96x = 260,383,764.17
  5. Step 5: Solve for x
    x = 260,383,764.17/18,279.96
  6. Step 6: Final answer
    x = 14,244.22

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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.