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Finding the Fourth Proportional to 3,262.80, 4,894.22 and 797.64

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Solution

The fourth proportional to 3,262.80, 4,894.22 and 797.64 is: 1,196.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,262.80 : 4,894.22 = 797.64 : x
  2. Step 2: Convert to fraction form
    3,262.80/4,894.22 = 797.64/x
  3. Step 3: Cross multiply
    3,262.80x = 4,894.22 × 797.64
  4. Step 4: Simplify right side
    3,262.80x = 3,903,825.64
  5. Step 5: Solve for x
    x = 3,903,825.64/3,262.80
  6. Step 6: Final answer
    x = 1,196.46

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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.