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Finding the Fourth Proportional to 69,930.92, 104,893.68 and 17,340.86

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Solution

The fourth proportional to 69,930.92, 104,893.68 and 17,340.86 is: 26,010.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,930.92 : 104,893.68 = 17,340.86 : x
  2. Step 2: Convert to fraction form
    69,930.92/104,893.68 = 17,340.86/x
  3. Step 3: Cross multiply
    69,930.92x = 104,893.68 × 17,340.86
  4. Step 4: Simplify right side
    69,930.92x = 1,818,946,619.76
  5. Step 5: Solve for x
    x = 1,818,946,619.76/69,930.92
  6. Step 6: Final answer
    x = 26,010.62

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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.