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Finding the Fourth Proportional to 1,884.27, 2,825.85 and 713.41

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Solution

The fourth proportional to 1,884.27, 2,825.85 and 713.41 is: 1,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,884.27 : 2,825.85 = 713.41 : x
  2. Step 2: Convert to fraction form
    1,884.27/2,825.85 = 713.41/x
  3. Step 3: Cross multiply
    1,884.27x = 2,825.85 × 713.41
  4. Step 4: Simplify right side
    1,884.27x = 2,015,971.95
  5. Step 5: Solve for x
    x = 2,015,971.95/1,884.27
  6. Step 6: Final answer
    x = 1,069.90

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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.