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Finding the Fourth Proportional to 17,993.31, 26,983.48 and 7,605.87

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Solution

The fourth proportional to 17,993.31, 26,983.48 and 7,605.87 is: 11,406.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,993.31 : 26,983.48 = 7,605.87 : x
  2. Step 2: Convert to fraction form
    17,993.31/26,983.48 = 7,605.87/x
  3. Step 3: Cross multiply
    17,993.31x = 26,983.48 × 7,605.87
  4. Step 4: Simplify right side
    17,993.31x = 205,232,841.03
  5. Step 5: Solve for x
    x = 205,232,841.03/17,993.31
  6. Step 6: Final answer
    x = 11,406.06

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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.