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Finding the Fourth Proportional to 2,874.52, 4,312.19 and 1,231.03

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Solution

The fourth proportional to 2,874.52, 4,312.19 and 1,231.03 is: 1,846.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.52 : 4,312.19 = 1,231.03 : x
  2. Step 2: Convert to fraction form
    2,874.52/4,312.19 = 1,231.03/x
  3. Step 3: Cross multiply
    2,874.52x = 4,312.19 × 1,231.03
  4. Step 4: Simplify right side
    2,874.52x = 5,308,435.26
  5. Step 5: Solve for x
    x = 5,308,435.26/2,874.52
  6. Step 6: Final answer
    x = 1,846.72

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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.