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Finding the Fourth Proportional to 5,913.69, 8,161.02 and 3,261.21

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Solution

The fourth proportional to 5,913.69, 8,161.02 and 3,261.21 is: 4,500.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,913.69 : 8,161.02 = 3,261.21 : x
  2. Step 2: Convert to fraction form
    5,913.69/8,161.02 = 3,261.21/x
  3. Step 3: Cross multiply
    5,913.69x = 8,161.02 × 3,261.21
  4. Step 4: Simplify right side
    5,913.69x = 26,614,800.03
  5. Step 5: Solve for x
    x = 26,614,800.03/5,913.69
  6. Step 6: Final answer
    x = 4,500.54

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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.