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Finding the Fourth Proportional to 3,562.73, 4,917.94 and 3,189.05

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Solution

The fourth proportional to 3,562.73, 4,917.94 and 3,189.05 is: 4,402.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,562.73 : 4,917.94 = 3,189.05 : x
  2. Step 2: Convert to fraction form
    3,562.73/4,917.94 = 3,189.05/x
  3. Step 3: Cross multiply
    3,562.73x = 4,917.94 × 3,189.05
  4. Step 4: Simplify right side
    3,562.73x = 15,683,556.56
  5. Step 5: Solve for x
    x = 15,683,556.56/3,562.73
  6. Step 6: Final answer
    x = 4,402.12

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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.