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Finding the Fourth Proportional to 3,742.57, 5,617.31 and 1,894.98

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Solution

The fourth proportional to 3,742.57, 5,617.31 and 1,894.98 is: 2,844.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.57 : 5,617.31 = 1,894.98 : x
  2. Step 2: Convert to fraction form
    3,742.57/5,617.31 = 1,894.98/x
  3. Step 3: Cross multiply
    3,742.57x = 5,617.31 × 1,894.98
  4. Step 4: Simplify right side
    3,742.57x = 10,644,680.63
  5. Step 5: Solve for x
    x = 10,644,680.63/3,742.57
  6. Step 6: Final answer
    x = 2,844.22

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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.