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Finding the Fourth Proportional to 3,575.75, 5,363.62 and 2,916.91

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Solution

The fourth proportional to 3,575.75, 5,363.62 and 2,916.91 is: 4,375.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,575.75 : 5,363.62 = 2,916.91 : x
  2. Step 2: Convert to fraction form
    3,575.75/5,363.62 = 2,916.91/x
  3. Step 3: Cross multiply
    3,575.75x = 5,363.62 × 2,916.91
  4. Step 4: Simplify right side
    3,575.75x = 15,645,196.23
  5. Step 5: Solve for x
    x = 15,645,196.23/3,575.75
  6. Step 6: Final answer
    x = 4,375.37

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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.