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Finding the Fourth Proportional to 69,709.88, 104,564.82 and 25,328.36

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Solution

The fourth proportional to 69,709.88, 104,564.82 and 25,328.36 is: 37,992.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,709.88 : 104,564.82 = 25,328.36 : x
  2. Step 2: Convert to fraction form
    69,709.88/104,564.82 = 25,328.36/x
  3. Step 3: Cross multiply
    69,709.88x = 104,564.82 × 25,328.36
  4. Step 4: Simplify right side
    69,709.88x = 2,648,455,404.30
  5. Step 5: Solve for x
    x = 2,648,455,404.30/69,709.88
  6. Step 6: Final answer
    x = 37,992.54

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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.