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Finding the Fourth Proportional to 69,580.72, 104,379 and 25,228.36

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Solution

The fourth proportional to 69,580.72, 104,379 and 25,228.36 is: 37,845.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,580.72 : 104,379 = 25,228.36 : x
  2. Step 2: Convert to fraction form
    69,580.72/104,379 = 25,228.36/x
  3. Step 3: Cross multiply
    69,580.72x = 104,379 × 25,228.36
  4. Step 4: Simplify right side
    69,580.72x = 2,633,310,988.44
  5. Step 5: Solve for x
    x = 2,633,310,988.44/69,580.72
  6. Step 6: Final answer
    x = 37,845.41

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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.