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Finding the Fourth Proportional to 69,993.18, 104,989.74 and 17,402.66

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Solution

The fourth proportional to 69,993.18, 104,989.74 and 17,402.66 is: 26,103.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,993.18 : 104,989.74 = 17,402.66 : x
  2. Step 2: Convert to fraction form
    69,993.18/104,989.74 = 17,402.66/x
  3. Step 3: Cross multiply
    69,993.18x = 104,989.74 × 17,402.66
  4. Step 4: Simplify right side
    69,993.18x = 1,827,100,661.70
  5. Step 5: Solve for x
    x = 1,827,100,661.70/69,993.18
  6. Step 6: Final answer
    x = 26,103.98

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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.