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Finding the Fourth Proportional to 3,958.22, 5,935.70 and 1,765.45

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Solution

The fourth proportional to 3,958.22, 5,935.70 and 1,765.45 is: 2,647.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.22 : 5,935.70 = 1,765.45 : x
  2. Step 2: Convert to fraction form
    3,958.22/5,935.70 = 1,765.45/x
  3. Step 3: Cross multiply
    3,958.22x = 5,935.70 × 1,765.45
  4. Step 4: Simplify right side
    3,958.22x = 10,479,171.14
  5. Step 5: Solve for x
    x = 10,479,171.14/3,958.22
  6. Step 6: Final answer
    x = 2,647.45

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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.