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Finding the Fourth Proportional to 34,415.50, 51,623.26 and 9,791.50

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Solution

The fourth proportional to 34,415.50, 51,623.26 and 9,791.50 is: 14,687.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,415.50 : 51,623.26 = 9,791.50 : x
  2. Step 2: Convert to fraction form
    34,415.50/51,623.26 = 9,791.50/x
  3. Step 3: Cross multiply
    34,415.50x = 51,623.26 × 9,791.50
  4. Step 4: Simplify right side
    34,415.50x = 505,469,150.29
  5. Step 5: Solve for x
    x = 505,469,150.29/34,415.50
  6. Step 6: Final answer
    x = 14,687.25

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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.