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Finding the Fourth Proportional to 69,467.76, 104,201.61 and 16,876.89

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Solution

The fourth proportional to 69,467.76, 104,201.61 and 16,876.89 is: 25,315.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,467.76 : 104,201.61 = 16,876.89 : x
  2. Step 2: Convert to fraction form
    69,467.76/104,201.61 = 16,876.89/x
  3. Step 3: Cross multiply
    69,467.76x = 104,201.61 × 16,876.89
  4. Step 4: Simplify right side
    69,467.76x = 1,758,599,109.79
  5. Step 5: Solve for x
    x = 1,758,599,109.79/69,467.76
  6. Step 6: Final answer
    x = 25,315.33

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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.