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Finding the Fourth Proportional to 18,296.75, 25,249.19 and 10,338.81

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Solution

The fourth proportional to 18,296.75, 25,249.19 and 10,338.81 is: 14,267.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.75 : 25,249.19 = 10,338.81 : x
  2. Step 2: Convert to fraction form
    18,296.75/25,249.19 = 10,338.81/x
  3. Step 3: Cross multiply
    18,296.75x = 25,249.19 × 10,338.81
  4. Step 4: Simplify right side
    18,296.75x = 261,046,578.06
  5. Step 5: Solve for x
    x = 261,046,578.06/18,296.75
  6. Step 6: Final answer
    x = 14,267.37

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Half scale
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Double scale
Find fourth proportional to 18,297.75, 25,250.57 and 10,339.81
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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.