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Finding the Fourth Proportional to 1,930.94, 2,896.29 and 943.37

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Solution

The fourth proportional to 1,930.94, 2,896.29 and 943.37 is: 1,415.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.94 : 2,896.29 = 943.37 : x
  2. Step 2: Convert to fraction form
    1,930.94/2,896.29 = 943.37/x
  3. Step 3: Cross multiply
    1,930.94x = 2,896.29 × 943.37
  4. Step 4: Simplify right side
    1,930.94x = 2,732,283.88
  5. Step 5: Solve for x
    x = 2,732,283.88/1,930.94
  6. Step 6: Final answer
    x = 1,415.00

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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.