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Finding the Fourth Proportional to 2,966.22, 4,093.46 and 1,639.94

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Solution

The fourth proportional to 2,966.22, 4,093.46 and 1,639.94 is: 2,263.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966.22 : 4,093.46 = 1,639.94 : x
  2. Step 2: Convert to fraction form
    2,966.22/4,093.46 = 1,639.94/x
  3. Step 3: Cross multiply
    2,966.22x = 4,093.46 × 1,639.94
  4. Step 4: Simplify right side
    2,966.22x = 6,713,028.79
  5. Step 5: Solve for x
    x = 6,713,028.79/2,966.22
  6. Step 6: Final answer
    x = 2,263.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.