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Finding the Fourth Proportional to 69,983.80, 104,975.22 and 17,393.20

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Solution

The fourth proportional to 69,983.80, 104,975.22 and 17,393.20 is: 26,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,983.80 : 104,975.22 = 17,393.20 : x
  2. Step 2: Convert to fraction form
    69,983.80/104,975.22 = 17,393.20/x
  3. Step 3: Cross multiply
    69,983.80x = 104,975.22 × 17,393.20
  4. Step 4: Simplify right side
    69,983.80x = 1,825,854,996.50
  5. Step 5: Solve for x
    x = 1,825,854,996.50/69,983.80
  6. Step 6: Final answer
    x = 26,089.68

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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.