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Finding the Fourth Proportional to 17,245.40, 25,868.38 and 5,558.68

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Solution

The fourth proportional to 17,245.40, 25,868.38 and 5,558.68 is: 8,338.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,245.40 : 25,868.38 = 5,558.68 : x
  2. Step 2: Convert to fraction form
    17,245.40/25,868.38 = 5,558.68/x
  3. Step 3: Cross multiply
    17,245.40x = 25,868.38 × 5,558.68
  4. Step 4: Simplify right side
    17,245.40x = 143,794,046.54
  5. Step 5: Solve for x
    x = 143,794,046.54/17,245.40
  6. Step 6: Final answer
    x = 8,338.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.