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Finding the Fourth Proportional to 3,863.76, 5,795.87 and 1,090.23

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Solution

The fourth proportional to 3,863.76, 5,795.87 and 1,090.23 is: 1,635.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.76 : 5,795.87 = 1,090.23 : x
  2. Step 2: Convert to fraction form
    3,863.76/5,795.87 = 1,090.23/x
  3. Step 3: Cross multiply
    3,863.76x = 5,795.87 × 1,090.23
  4. Step 4: Simplify right side
    3,863.76x = 6,318,825.90
  5. Step 5: Solve for x
    x = 6,318,825.90/3,863.76
  6. Step 6: Final answer
    x = 1,635.41

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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.