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Finding the Fourth Proportional to 1,903.94, 2,855.72 and 1,351.01

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Solution

The fourth proportional to 1,903.94, 2,855.72 and 1,351.01 is: 2,026.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.94 : 2,855.72 = 1,351.01 : x
  2. Step 2: Convert to fraction form
    1,903.94/2,855.72 = 1,351.01/x
  3. Step 3: Cross multiply
    1,903.94x = 2,855.72 × 1,351.01
  4. Step 4: Simplify right side
    1,903.94x = 3,858,085.24
  5. Step 5: Solve for x
    x = 3,858,085.24/1,903.94
  6. Step 6: Final answer
    x = 2,026.37

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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.