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Finding the Fourth Proportional to 4,794.78, 7,189.74 and 2,195.48

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Solution

The fourth proportional to 4,794.78, 7,189.74 and 2,195.48 is: 3,292.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,794.78 : 7,189.74 = 2,195.48 : x
  2. Step 2: Convert to fraction form
    4,794.78/7,189.74 = 2,195.48/x
  3. Step 3: Cross multiply
    4,794.78x = 7,189.74 × 2,195.48
  4. Step 4: Simplify right side
    4,794.78x = 15,784,930.38
  5. Step 5: Solve for x
    x = 15,784,930.38/4,794.78
  6. Step 6: Final answer
    x = 3,292.11

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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.