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Finding the Fourth Proportional to 7,963.88, 11,955.05 and 4,273.32

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Solution

The fourth proportional to 7,963.88, 11,955.05 and 4,273.32 is: 6,414.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.88 : 11,955.05 = 4,273.32 : x
  2. Step 2: Convert to fraction form
    7,963.88/11,955.05 = 4,273.32/x
  3. Step 3: Cross multiply
    7,963.88x = 11,955.05 × 4,273.32
  4. Step 4: Simplify right side
    7,963.88x = 51,087,732.90
  5. Step 5: Solve for x
    x = 51,087,732.90/7,963.88
  6. Step 6: Final answer
    x = 6,414.93

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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.