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Finding the Fourth Proportional to 17,755.50, 26,619.21 and 8,866.26

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Solution

The fourth proportional to 17,755.50, 26,619.21 and 8,866.26 is: 13,292.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,755.50 : 26,619.21 = 8,866.26 : x
  2. Step 2: Convert to fraction form
    17,755.50/26,619.21 = 8,866.26/x
  3. Step 3: Cross multiply
    17,755.50x = 26,619.21 × 8,866.26
  4. Step 4: Simplify right side
    17,755.50x = 236,012,836.85
  5. Step 5: Solve for x
    x = 236,012,836.85/17,755.50
  6. Step 6: Final answer
    x = 13,292.38

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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.