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Finding the Fourth Proportional to 2,965.88, 4,449.88 and 1,322.28

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Solution

The fourth proportional to 2,965.88, 4,449.88 and 1,322.28 is: 1,983.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.88 : 4,449.88 = 1,322.28 : x
  2. Step 2: Convert to fraction form
    2,965.88/4,449.88 = 1,322.28/x
  3. Step 3: Cross multiply
    2,965.88x = 4,449.88 × 1,322.28
  4. Step 4: Simplify right side
    2,965.88x = 5,883,987.33
  5. Step 5: Solve for x
    x = 5,883,987.33/2,965.88
  6. Step 6: Final answer
    x = 1,983.89

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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.