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Finding the Fourth Proportional to 1,944.73, 2,916.42 and 695.35

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Solution

The fourth proportional to 1,944.73, 2,916.42 and 695.35 is: 1,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.73 : 2,916.42 = 695.35 : x
  2. Step 2: Convert to fraction form
    1,944.73/2,916.42 = 695.35/x
  3. Step 3: Cross multiply
    1,944.73x = 2,916.42 × 695.35
  4. Step 4: Simplify right side
    1,944.73x = 2,027,932.65
  5. Step 5: Solve for x
    x = 2,027,932.65/1,944.73
  6. Step 6: Final answer
    x = 1,042.78

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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.