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Finding the Fourth Proportional to 13,951.61, 20,929.44 and 5,067.53

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Solution

The fourth proportional to 13,951.61, 20,929.44 and 5,067.53 is: 7,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.61 : 20,929.44 = 5,067.53 : x
  2. Step 2: Convert to fraction form
    13,951.61/20,929.44 = 5,067.53/x
  3. Step 3: Cross multiply
    13,951.61x = 20,929.44 × 5,067.53
  4. Step 4: Simplify right side
    13,951.61x = 106,060,460.44
  5. Step 5: Solve for x
    x = 106,060,460.44/13,951.61
  6. Step 6: Final answer
    x = 7,602.03

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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.