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Finding the Fourth Proportional to 2,447.64, 3,671.46 and 716.27

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Solution

The fourth proportional to 2,447.64, 3,671.46 and 716.27 is: 1,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.64 : 3,671.46 = 716.27 : x
  2. Step 2: Convert to fraction form
    2,447.64/3,671.46 = 716.27/x
  3. Step 3: Cross multiply
    2,447.64x = 3,671.46 × 716.27
  4. Step 4: Simplify right side
    2,447.64x = 2,629,738.30
  5. Step 5: Solve for x
    x = 2,629,738.30/2,447.64
  6. Step 6: Final answer
    x = 1,074.40

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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.