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Finding the Fourth Proportional to 17,768.88, 26,653.26 and 16,686.26

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Solution

The fourth proportional to 17,768.88, 26,653.26 and 16,686.26 is: 25,029.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,768.88 : 26,653.26 = 16,686.26 : x
  2. Step 2: Convert to fraction form
    17,768.88/26,653.26 = 16,686.26/x
  3. Step 3: Cross multiply
    17,768.88x = 26,653.26 × 16,686.26
  4. Step 4: Simplify right side
    17,768.88x = 444,743,226.21
  5. Step 5: Solve for x
    x = 444,743,226.21/17,768.88
  6. Step 6: Final answer
    x = 25,029.33

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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.