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Finding the Fourth Proportional to 8,944.09, 13,418.12 and 2,940.43

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Solution

The fourth proportional to 8,944.09, 13,418.12 and 2,940.43 is: 4,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,944.09 : 13,418.12 = 2,940.43 : x
  2. Step 2: Convert to fraction form
    8,944.09/13,418.12 = 2,940.43/x
  3. Step 3: Cross multiply
    8,944.09x = 13,418.12 × 2,940.43
  4. Step 4: Simplify right side
    8,944.09x = 39,455,068.79
  5. Step 5: Solve for x
    x = 39,455,068.79/8,944.09
  6. Step 6: Final answer
    x = 4,411.30

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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.