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Finding the Fourth Proportional to 17,868.94, 26,803.41 and 7,480.69

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Solution

The fourth proportional to 17,868.94, 26,803.41 and 7,480.69 is: 11,221.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,868.94 : 26,803.41 = 7,480.69 : x
  2. Step 2: Convert to fraction form
    17,868.94/26,803.41 = 7,480.69/x
  3. Step 3: Cross multiply
    17,868.94x = 26,803.41 × 7,480.69
  4. Step 4: Simplify right side
    17,868.94x = 200,507,906.09
  5. Step 5: Solve for x
    x = 200,507,906.09/17,868.94
  6. Step 6: Final answer
    x = 11,221.03

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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.