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Finding the Fourth Proportional to 3,365.97, 5,049 and 1,905.27

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Solution

The fourth proportional to 3,365.97, 5,049 and 1,905.27 is: 2,857.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,365.97 : 5,049 = 1,905.27 : x
  2. Step 2: Convert to fraction form
    3,365.97/5,049 = 1,905.27/x
  3. Step 3: Cross multiply
    3,365.97x = 5,049 × 1,905.27
  4. Step 4: Simplify right side
    3,365.97x = 9,619,708.23
  5. Step 5: Solve for x
    x = 9,619,708.23/3,365.97
  6. Step 6: Final answer
    x = 2,857.93

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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.