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Finding the Fourth Proportional to 2,894.68, 3,993.58 and 1,900.52

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Solution

The fourth proportional to 2,894.68, 3,993.58 and 1,900.52 is: 2,622.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.68 : 3,993.58 = 1,900.52 : x
  2. Step 2: Convert to fraction form
    2,894.68/3,993.58 = 1,900.52/x
  3. Step 3: Cross multiply
    2,894.68x = 3,993.58 × 1,900.52
  4. Step 4: Simplify right side
    2,894.68x = 7,589,878.66
  5. Step 5: Solve for x
    x = 7,589,878.66/2,894.68
  6. Step 6: Final answer
    x = 2,622.01

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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.