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Finding the Fourth Proportional to 19,629.69, 29,444.49 and 7,951.11

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Solution

The fourth proportional to 19,629.69, 29,444.49 and 7,951.11 is: 11,926.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,629.69 : 29,444.49 = 7,951.11 : x
  2. Step 2: Convert to fraction form
    19,629.69/29,444.49 = 7,951.11/x
  3. Step 3: Cross multiply
    19,629.69x = 29,444.49 × 7,951.11
  4. Step 4: Simplify right side
    19,629.69x = 234,116,378.88
  5. Step 5: Solve for x
    x = 234,116,378.88/19,629.69
  6. Step 6: Final answer
    x = 11,926.65

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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.