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Finding the Fourth Proportional to 19,919.27, 29,829.62 and 11,573.98

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Solution

The fourth proportional to 19,919.27, 29,829.62 and 11,573.98 is: 17,332.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.27 : 29,829.62 = 11,573.98 : x
  2. Step 2: Convert to fraction form
    19,919.27/29,829.62 = 11,573.98/x
  3. Step 3: Cross multiply
    19,919.27x = 29,829.62 × 11,573.98
  4. Step 4: Simplify right side
    19,919.27x = 345,247,379.65
  5. Step 5: Solve for x
    x = 345,247,379.65/19,919.27
  6. Step 6: Final answer
    x = 17,332.33

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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.