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Finding the Fourth Proportional to 1,906.54, 2,854.95 and 1,039.03

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Solution

The fourth proportional to 1,906.54, 2,854.95 and 1,039.03 is: 1,555.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.54 : 2,854.95 = 1,039.03 : x
  2. Step 2: Convert to fraction form
    1,906.54/2,854.95 = 1,039.03/x
  3. Step 3: Cross multiply
    1,906.54x = 2,854.95 × 1,039.03
  4. Step 4: Simplify right side
    1,906.54x = 2,966,367.66
  5. Step 5: Solve for x
    x = 2,966,367.66/1,906.54
  6. Step 6: Final answer
    x = 1,555.89

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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.