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Finding the Fourth Proportional to 30,791.82, 46,187.73 and 7,418.25

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Solution

The fourth proportional to 30,791.82, 46,187.73 and 7,418.25 is: 11,127.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,791.82 : 46,187.73 = 7,418.25 : x
  2. Step 2: Convert to fraction form
    30,791.82/46,187.73 = 7,418.25/x
  3. Step 3: Cross multiply
    30,791.82x = 46,187.73 × 7,418.25
  4. Step 4: Simplify right side
    30,791.82x = 342,632,128.07
  5. Step 5: Solve for x
    x = 342,632,128.07/30,791.82
  6. Step 6: Final answer
    x = 11,127.38

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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.