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Finding the Fourth Proportional to 17,651.66, 26,321.77 and 15,202.22

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Solution

The fourth proportional to 17,651.66, 26,321.77 and 15,202.22 is: 22,669.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,651.66 : 26,321.77 = 15,202.22 : x
  2. Step 2: Convert to fraction form
    17,651.66/26,321.77 = 15,202.22/x
  3. Step 3: Cross multiply
    17,651.66x = 26,321.77 × 15,202.22
  4. Step 4: Simplify right side
    17,651.66x = 400,149,338.33
  5. Step 5: Solve for x
    x = 400,149,338.33/17,651.66
  6. Step 6: Final answer
    x = 22,669.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.