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Finding the Fourth Proportional to 69,993.09, 104,990.03 and 17,402.58

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Solution

The fourth proportional to 69,993.09, 104,990.03 and 17,402.58 is: 26,103.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,993.09 : 104,990.03 = 17,402.58 : x
  2. Step 2: Convert to fraction form
    69,993.09/104,990.03 = 17,402.58/x
  3. Step 3: Cross multiply
    69,993.09x = 104,990.03 × 17,402.58
  4. Step 4: Simplify right side
    69,993.09x = 1,827,096,784.31
  5. Step 5: Solve for x
    x = 1,827,096,784.31/69,993.09
  6. Step 6: Final answer
    x = 26,103.96

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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.