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Finding the Fourth Proportional to 2,375.82, 3,563.28 and 1,916.28

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Solution

The fourth proportional to 2,375.82, 3,563.28 and 1,916.28 is: 2,874.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,375.82 : 3,563.28 = 1,916.28 : x
  2. Step 2: Convert to fraction form
    2,375.82/3,563.28 = 1,916.28/x
  3. Step 3: Cross multiply
    2,375.82x = 3,563.28 × 1,916.28
  4. Step 4: Simplify right side
    2,375.82x = 6,828,242.20
  5. Step 5: Solve for x
    x = 6,828,242.20/2,375.82
  6. Step 6: Final answer
    x = 2,874.06

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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.