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Finding the Fourth Proportional to 22,092.95, 30,488.40 and 12,021.46

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Solution

The fourth proportional to 22,092.95, 30,488.40 and 12,021.46 is: 16,589.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,092.95 : 30,488.40 = 12,021.46 : x
  2. Step 2: Convert to fraction form
    22,092.95/30,488.40 = 12,021.46/x
  3. Step 3: Cross multiply
    22,092.95x = 30,488.40 × 12,021.46
  4. Step 4: Simplify right side
    22,092.95x = 366,515,020.96
  5. Step 5: Solve for x
    x = 366,515,020.96/22,092.95
  6. Step 6: Final answer
    x = 16,589.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.