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Finding the Fourth Proportional to 3,322.55, 4,989.74 and 2,965.34

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Solution

The fourth proportional to 3,322.55, 4,989.74 and 2,965.34 is: 4,453.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,322.55 : 4,989.74 = 2,965.34 : x
  2. Step 2: Convert to fraction form
    3,322.55/4,989.74 = 2,965.34/x
  3. Step 3: Cross multiply
    3,322.55x = 4,989.74 × 2,965.34
  4. Step 4: Simplify right side
    3,322.55x = 14,796,273.26
  5. Step 5: Solve for x
    x = 14,796,273.26/3,322.55
  6. Step 6: Final answer
    x = 4,453.29

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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.