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Finding the Fourth Proportional to 17,798.21, 26,696.96 and 5,318.27

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Solution

The fourth proportional to 17,798.21, 26,696.96 and 5,318.27 is: 7,977.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,798.21 : 26,696.96 = 5,318.27 : x
  2. Step 2: Convert to fraction form
    17,798.21/26,696.96 = 5,318.27/x
  3. Step 3: Cross multiply
    17,798.21x = 26,696.96 × 5,318.27
  4. Step 4: Simplify right side
    17,798.21x = 141,981,614.87
  5. Step 5: Solve for x
    x = 141,981,614.87/17,798.21
  6. Step 6: Final answer
    x = 7,977.30

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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.