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Finding the Fourth Proportional to 19,672.00, 29,490.21 and 7,183.22

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Solution

The fourth proportional to 19,672.00, 29,490.21 and 7,183.22 is: 10,768.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.00 : 29,490.21 = 7,183.22 : x
  2. Step 2: Convert to fraction form
    19,672.00/29,490.21 = 7,183.22/x
  3. Step 3: Cross multiply
    19,672.00x = 29,490.21 × 7,183.22
  4. Step 4: Simplify right side
    19,672.00x = 211,834,518.83
  5. Step 5: Solve for x
    x = 211,834,518.83/19,672.00
  6. Step 6: Final answer
    x = 10,768.33

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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.