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Finding the Fourth Proportional to 69,402.72, 104,108.64 and 27,844.32

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Solution

The fourth proportional to 69,402.72, 104,108.64 and 27,844.32 is: 41,768.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,402.72 : 104,108.64 = 27,844.32 : x
  2. Step 2: Convert to fraction form
    69,402.72/104,108.64 = 27,844.32/x
  3. Step 3: Cross multiply
    69,402.72x = 104,108.64 × 27,844.32
  4. Step 4: Simplify right side
    69,402.72x = 2,898,834,286.92
  5. Step 5: Solve for x
    x = 2,898,834,286.92/69,402.72
  6. Step 6: Final answer
    x = 41,768.31

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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.