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Finding the Fourth Proportional to 12,043.14, 18,020.94 and 9,943.62

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Solution

The fourth proportional to 12,043.14, 18,020.94 and 9,943.62 is: 14,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,043.14 : 18,020.94 = 9,943.62 : x
  2. Step 2: Convert to fraction form
    12,043.14/18,020.94 = 9,943.62/x
  3. Step 3: Cross multiply
    12,043.14x = 18,020.94 × 9,943.62
  4. Step 4: Simplify right side
    12,043.14x = 179,193,379.40
  5. Step 5: Solve for x
    x = 179,193,379.40/12,043.14
  6. Step 6: Final answer
    x = 14,879.29

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1.5x scale

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.