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Finding the Fourth Proportional to 17,649.40, 26,474.11 and 11,080.20

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Solution

The fourth proportional to 17,649.40, 26,474.11 and 11,080.20 is: 16,620.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,649.40 : 26,474.11 = 11,080.20 : x
  2. Step 2: Convert to fraction form
    17,649.40/26,474.11 = 11,080.20/x
  3. Step 3: Cross multiply
    17,649.40x = 26,474.11 × 11,080.20
  4. Step 4: Simplify right side
    17,649.40x = 293,338,433.62
  5. Step 5: Solve for x
    x = 293,338,433.62/17,649.40
  6. Step 6: Final answer
    x = 16,620.31

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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.