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Finding the Fourth Proportional to 2,894.31, 3,994.14 and 1,568.04

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Solution

The fourth proportional to 2,894.31, 3,994.14 and 1,568.04 is: 2,163.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.31 : 3,994.14 = 1,568.04 : x
  2. Step 2: Convert to fraction form
    2,894.31/3,994.14 = 1,568.04/x
  3. Step 3: Cross multiply
    2,894.31x = 3,994.14 × 1,568.04
  4. Step 4: Simplify right side
    2,894.31x = 6,262,971.29
  5. Step 5: Solve for x
    x = 6,262,971.29/2,894.31
  6. Step 6: Final answer
    x = 2,163.89

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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.