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Finding the Fourth Proportional to 3,522.75, 5,286.07 and 1,963.63

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Solution

The fourth proportional to 3,522.75, 5,286.07 and 1,963.63 is: 2,946.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,522.75 : 5,286.07 = 1,963.63 : x
  2. Step 2: Convert to fraction form
    3,522.75/5,286.07 = 1,963.63/x
  3. Step 3: Cross multiply
    3,522.75x = 5,286.07 × 1,963.63
  4. Step 4: Simplify right side
    3,522.75x = 10,379,881.74
  5. Step 5: Solve for x
    x = 10,379,881.74/3,522.75
  6. Step 6: Final answer
    x = 2,946.53

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1.5x scale

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.