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Finding the Fourth Proportional to 2,028.92, 3,040.62 and 1,053

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Solution

The fourth proportional to 2,028.92, 3,040.62 and 1,053 is: 1,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.92 : 3,040.62 = 1,053 : x
  2. Step 2: Convert to fraction form
    2,028.92/3,040.62 = 1,053/x
  3. Step 3: Cross multiply
    2,028.92x = 3,040.62 × 1,053
  4. Step 4: Simplify right side
    2,028.92x = 3,201,772.86
  5. Step 5: Solve for x
    x = 3,201,772.86/2,028.92
  6. Step 6: Final answer
    x = 1,578.07

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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.