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Finding the Fourth Proportional to 15,203.54, 22,791.08 and 7,791.60

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Solution

The fourth proportional to 15,203.54, 22,791.08 and 7,791.60 is: 11,680.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,203.54 : 22,791.08 = 7,791.60 : x
  2. Step 2: Convert to fraction form
    15,203.54/22,791.08 = 7,791.60/x
  3. Step 3: Cross multiply
    15,203.54x = 22,791.08 × 7,791.60
  4. Step 4: Simplify right side
    15,203.54x = 177,578,978.93
  5. Step 5: Solve for x
    x = 177,578,978.93/15,203.54
  6. Step 6: Final answer
    x = 11,680.11

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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.