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Finding the Fourth Proportional to 69,784.25, 104,676.42 and 17,193.74

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Solution

The fourth proportional to 69,784.25, 104,676.42 and 17,193.74 is: 25,790.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,784.25 : 104,676.42 = 17,193.74 : x
  2. Step 2: Convert to fraction form
    69,784.25/104,676.42 = 17,193.74/x
  3. Step 3: Cross multiply
    69,784.25x = 104,676.42 × 17,193.74
  4. Step 4: Simplify right side
    69,784.25x = 1,799,778,690.71
  5. Step 5: Solve for x
    x = 1,799,778,690.71/69,784.25
  6. Step 6: Final answer
    x = 25,790.62

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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.