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Finding the Fourth Proportional to 3,768.45, 5,653.88 and 1,822.02

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Solution

The fourth proportional to 3,768.45, 5,653.88 and 1,822.02 is: 2,733.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.45 : 5,653.88 = 1,822.02 : x
  2. Step 2: Convert to fraction form
    3,768.45/5,653.88 = 1,822.02/x
  3. Step 3: Cross multiply
    3,768.45x = 5,653.88 × 1,822.02
  4. Step 4: Simplify right side
    3,768.45x = 10,301,482.44
  5. Step 5: Solve for x
    x = 10,301,482.44/3,768.45
  6. Step 6: Final answer
    x = 2,733.61

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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.