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Finding the Fourth Proportional to 2,753.96, 4,129.84 and 1,022

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Solution

The fourth proportional to 2,753.96, 4,129.84 and 1,022 is: 1,532.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.96 : 4,129.84 = 1,022 : x
  2. Step 2: Convert to fraction form
    2,753.96/4,129.84 = 1,022/x
  3. Step 3: Cross multiply
    2,753.96x = 4,129.84 × 1,022
  4. Step 4: Simplify right side
    2,753.96x = 4,220,696.48
  5. Step 5: Solve for x
    x = 4,220,696.48/2,753.96
  6. Step 6: Final answer
    x = 1,532.59

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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.