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Finding the Fourth Proportional to 35,751.81, 49,340.21 and 19,839.27

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Solution

The fourth proportional to 35,751.81, 49,340.21 and 19,839.27 is: 27,379.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,751.81 : 49,340.21 = 19,839.27 : x
  2. Step 2: Convert to fraction form
    35,751.81/49,340.21 = 19,839.27/x
  3. Step 3: Cross multiply
    35,751.81x = 49,340.21 × 19,839.27
  4. Step 4: Simplify right side
    35,751.81x = 978,873,648.85
  5. Step 5: Solve for x
    x = 978,873,648.85/35,751.81
  6. Step 6: Final answer
    x = 27,379.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.