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Finding the Fourth Proportional to 3,694.88, 5,094.78 and 3,020.60

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Solution

The fourth proportional to 3,694.88, 5,094.78 and 3,020.60 is: 4,165.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,694.88 : 5,094.78 = 3,020.60 : x
  2. Step 2: Convert to fraction form
    3,694.88/5,094.78 = 3,020.60/x
  3. Step 3: Cross multiply
    3,694.88x = 5,094.78 × 3,020.60
  4. Step 4: Simplify right side
    3,694.88x = 15,389,292.47
  5. Step 5: Solve for x
    x = 15,389,292.47/3,694.88
  6. Step 6: Final answer
    x = 4,165.03

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1.5x scale

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.