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Finding the Fourth Proportional to 69,993.45, 104,990.24 and 17,402.94

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Solution

The fourth proportional to 69,993.45, 104,990.24 and 17,402.94 is: 26,104.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,993.45 : 104,990.24 = 17,402.94 : x
  2. Step 2: Convert to fraction form
    69,993.45/104,990.24 = 17,402.94/x
  3. Step 3: Cross multiply
    69,993.45x = 104,990.24 × 17,402.94
  4. Step 4: Simplify right side
    69,993.45x = 1,827,138,890.81
  5. Step 5: Solve for x
    x = 1,827,138,890.81/69,993.45
  6. Step 6: Final answer
    x = 26,104.43

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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.