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Finding the Fourth Proportional to 3,916.79, 5,873.31 and 2,273.79

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Solution

The fourth proportional to 3,916.79, 5,873.31 and 2,273.79 is: 3,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.79 : 5,873.31 = 2,273.79 : x
  2. Step 2: Convert to fraction form
    3,916.79/5,873.31 = 2,273.79/x
  3. Step 3: Cross multiply
    3,916.79x = 5,873.31 × 2,273.79
  4. Step 4: Simplify right side
    3,916.79x = 13,354,673.54
  5. Step 5: Solve for x
    x = 13,354,673.54/3,916.79
  6. Step 6: Final answer
    x = 3,409.60

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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.