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Finding the Fourth Proportional to 2,651.01, 3,976.61 and 703.22

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Solution

The fourth proportional to 2,651.01, 3,976.61 and 703.22 is: 1,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.01 : 3,976.61 = 703.22 : x
  2. Step 2: Convert to fraction form
    2,651.01/3,976.61 = 703.22/x
  3. Step 3: Cross multiply
    2,651.01x = 3,976.61 × 703.22
  4. Step 4: Simplify right side
    2,651.01x = 2,796,408.29
  5. Step 5: Solve for x
    x = 2,796,408.29/2,651.01
  6. Step 6: Final answer
    x = 1,054.85

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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.