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Finding the Fourth Proportional to 17,804.54, 26,698.39 and 5,320.20

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Solution

The fourth proportional to 17,804.54, 26,698.39 and 5,320.20 is: 7,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,804.54 : 26,698.39 = 5,320.20 : x
  2. Step 2: Convert to fraction form
    17,804.54/26,698.39 = 5,320.20/x
  3. Step 3: Cross multiply
    17,804.54x = 26,698.39 × 5,320.20
  4. Step 4: Simplify right side
    17,804.54x = 142,040,761.18
  5. Step 5: Solve for x
    x = 142,040,761.18/17,804.54
  6. Step 6: Final answer
    x = 7,977.79

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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.