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Finding the Fourth Proportional to 3,419.52, 4,718.88 and 2,022

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Solution

The fourth proportional to 3,419.52, 4,718.88 and 2,022 is: 2,790.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.52 : 4,718.88 = 2,022 : x
  2. Step 2: Convert to fraction form
    3,419.52/4,718.88 = 2,022/x
  3. Step 3: Cross multiply
    3,419.52x = 4,718.88 × 2,022
  4. Step 4: Simplify right side
    3,419.52x = 9,541,575.36
  5. Step 5: Solve for x
    x = 9,541,575.36/3,419.52
  6. Step 6: Final answer
    x = 2,790.33

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Why These Related Problems?

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