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Finding the Fourth Proportional to 2,412.99, 3,620.43 and 952.56

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Solution

The fourth proportional to 2,412.99, 3,620.43 and 952.56 is: 1,429.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,412.99 : 3,620.43 = 952.56 : x
  2. Step 2: Convert to fraction form
    2,412.99/3,620.43 = 952.56/x
  3. Step 3: Cross multiply
    2,412.99x = 3,620.43 × 952.56
  4. Step 4: Simplify right side
    2,412.99x = 3,448,676.80
  5. Step 5: Solve for x
    x = 3,448,676.80/2,412.99
  6. Step 6: Final answer
    x = 1,429.21

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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.