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Finding the Fourth Proportional to 17,551.87, 26,335.13 and 7,698.22

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Solution

The fourth proportional to 17,551.87, 26,335.13 and 7,698.22 is: 11,550.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,551.87 : 26,335.13 = 7,698.22 : x
  2. Step 2: Convert to fraction form
    17,551.87/26,335.13 = 7,698.22/x
  3. Step 3: Cross multiply
    17,551.87x = 26,335.13 × 7,698.22
  4. Step 4: Simplify right side
    17,551.87x = 202,733,624.47
  5. Step 5: Solve for x
    x = 202,733,624.47/17,551.87
  6. Step 6: Final answer
    x = 11,550.54

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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.