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Finding the Fourth Proportional to 17,758.44, 26,628.70 and 6,664.68

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Solution

The fourth proportional to 17,758.44, 26,628.70 and 6,664.68 is: 9,993.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,758.44 : 26,628.70 = 6,664.68 : x
  2. Step 2: Convert to fraction form
    17,758.44/26,628.70 = 6,664.68/x
  3. Step 3: Cross multiply
    17,758.44x = 26,628.70 × 6,664.68
  4. Step 4: Simplify right side
    17,758.44x = 177,471,764.32
  5. Step 5: Solve for x
    x = 177,471,764.32/17,758.44
  6. Step 6: Final answer
    x = 9,993.66

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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.