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Finding the Fourth Proportional to 1,906.73, 2,859.99 and 932.50

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Solution

The fourth proportional to 1,906.73, 2,859.99 and 932.50 is: 1,398.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.73 : 2,859.99 = 932.50 : x
  2. Step 2: Convert to fraction form
    1,906.73/2,859.99 = 932.50/x
  3. Step 3: Cross multiply
    1,906.73x = 2,859.99 × 932.50
  4. Step 4: Simplify right side
    1,906.73x = 2,666,940.68
  5. Step 5: Solve for x
    x = 2,666,940.68/1,906.73
  6. Step 6: Final answer
    x = 1,398.70

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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.