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Finding the Fourth Proportional to 17,786.54, 26,678.84 and 9,021.22

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Solution

The fourth proportional to 17,786.54, 26,678.84 and 9,021.22 is: 13,531.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,786.54 : 26,678.84 = 9,021.22 : x
  2. Step 2: Convert to fraction form
    17,786.54/26,678.84 = 9,021.22/x
  3. Step 3: Cross multiply
    17,786.54x = 26,678.84 × 9,021.22
  4. Step 4: Simplify right side
    17,786.54x = 240,675,662.43
  5. Step 5: Solve for x
    x = 240,675,662.43/17,786.54
  6. Step 6: Final answer
    x = 13,531.34

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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.