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Finding the Fourth Proportional to 18,753.44, 25,879.92 and 10,370.08

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Solution

The fourth proportional to 18,753.44, 25,879.92 and 10,370.08 is: 14,310.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.44 : 25,879.92 = 10,370.08 : x
  2. Step 2: Convert to fraction form
    18,753.44/25,879.92 = 10,370.08/x
  3. Step 3: Cross multiply
    18,753.44x = 25,879.92 × 10,370.08
  4. Step 4: Simplify right side
    18,753.44x = 268,376,840.79
  5. Step 5: Solve for x
    x = 268,376,840.79/18,753.44
  6. Step 6: Final answer
    x = 14,310.81

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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.