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Finding the Fourth Proportional to 17,939.26, 26,912.99 and 5,461.06

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Solution

The fourth proportional to 17,939.26, 26,912.99 and 5,461.06 is: 8,192.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,939.26 : 26,912.99 = 5,461.06 : x
  2. Step 2: Convert to fraction form
    17,939.26/26,912.99 = 5,461.06/x
  3. Step 3: Cross multiply
    17,939.26x = 26,912.99 × 5,461.06
  4. Step 4: Simplify right side
    17,939.26x = 146,973,291.30
  5. Step 5: Solve for x
    x = 146,973,291.30/17,939.26
  6. Step 6: Final answer
    x = 8,192.83

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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.