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Finding the Fourth Proportional to 2,943.03, 4,412.22 and 2,015.79

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Solution

The fourth proportional to 2,943.03, 4,412.22 and 2,015.79 is: 3,022.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.03 : 4,412.22 = 2,015.79 : x
  2. Step 2: Convert to fraction form
    2,943.03/4,412.22 = 2,015.79/x
  3. Step 3: Cross multiply
    2,943.03x = 4,412.22 × 2,015.79
  4. Step 4: Simplify right side
    2,943.03x = 8,894,108.95
  5. Step 5: Solve for x
    x = 8,894,108.95/2,943.03
  6. Step 6: Final answer
    x = 3,022.09

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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.