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Finding the Fourth Proportional to 18,879.53, 26,054.06 and 10,382.03

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Solution

The fourth proportional to 18,879.53, 26,054.06 and 10,382.03 is: 14,327.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879.53 : 26,054.06 = 10,382.03 : x
  2. Step 2: Convert to fraction form
    18,879.53/26,054.06 = 10,382.03/x
  3. Step 3: Cross multiply
    18,879.53x = 26,054.06 × 10,382.03
  4. Step 4: Simplify right side
    18,879.53x = 270,493,850.36
  5. Step 5: Solve for x
    x = 270,493,850.36/18,879.53
  6. Step 6: Final answer
    x = 14,327.37

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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.