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Finding the Fourth Proportional to 15,951.88, 23,906.98 and 9,945.48

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Solution

The fourth proportional to 15,951.88, 23,906.98 and 9,945.48 is: 14,905.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,951.88 : 23,906.98 = 9,945.48 : x
  2. Step 2: Convert to fraction form
    15,951.88/23,906.98 = 9,945.48/x
  3. Step 3: Cross multiply
    15,951.88x = 23,906.98 × 9,945.48
  4. Step 4: Simplify right side
    15,951.88x = 237,766,391.45
  5. Step 5: Solve for x
    x = 237,766,391.45/15,951.88
  6. Step 6: Final answer
    x = 14,905.23

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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.