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Finding the Fourth Proportional to 17,163.78, 25,749.62 and 7,303.38

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Solution

The fourth proportional to 17,163.78, 25,749.62 and 7,303.38 is: 10,956.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,163.78 : 25,749.62 = 7,303.38 : x
  2. Step 2: Convert to fraction form
    17,163.78/25,749.62 = 7,303.38/x
  3. Step 3: Cross multiply
    17,163.78x = 25,749.62 × 7,303.38
  4. Step 4: Simplify right side
    17,163.78x = 188,059,259.72
  5. Step 5: Solve for x
    x = 188,059,259.72/17,163.78
  6. Step 6: Final answer
    x = 10,956.75

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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.