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Finding the Fourth Proportional to 1,943.33, 2,916 and 1,838.77

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Solution

The fourth proportional to 1,943.33, 2,916 and 1,838.77 is: 2,759.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.33 : 2,916 = 1,838.77 : x
  2. Step 2: Convert to fraction form
    1,943.33/2,916 = 1,838.77/x
  3. Step 3: Cross multiply
    1,943.33x = 2,916 × 1,838.77
  4. Step 4: Simplify right side
    1,943.33x = 5,361,846.03
  5. Step 5: Solve for x
    x = 5,361,846.03/1,943.33
  6. Step 6: Final answer
    x = 2,759.11

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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.