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Finding the Fourth Proportional to 17,940.99, 26,892.20 and 17,112.97

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Solution

The fourth proportional to 17,940.99, 26,892.20 and 17,112.97 is: 25,651.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,940.99 : 26,892.20 = 17,112.97 : x
  2. Step 2: Convert to fraction form
    17,940.99/26,892.20 = 17,112.97/x
  3. Step 3: Cross multiply
    17,940.99x = 26,892.20 × 17,112.97
  4. Step 4: Simplify right side
    17,940.99x = 460,205,488.23
  5. Step 5: Solve for x
    x = 460,205,488.23/17,940.99
  6. Step 6: Final answer
    x = 25,651.06

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1.5x scale

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.