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Finding the Fourth Proportional to 17,296.10, 25,918.91 and 7,667.36

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Solution

The fourth proportional to 17,296.10, 25,918.91 and 7,667.36 is: 11,489.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,296.10 : 25,918.91 = 7,667.36 : x
  2. Step 2: Convert to fraction form
    17,296.10/25,918.91 = 7,667.36/x
  3. Step 3: Cross multiply
    17,296.10x = 25,918.91 × 7,667.36
  4. Step 4: Simplify right side
    17,296.10x = 198,729,675.37
  5. Step 5: Solve for x
    x = 198,729,675.37/17,296.10
  6. Step 6: Final answer
    x = 11,489.85

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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.