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Finding the Fourth Proportional to 3,161.72, 4,363.17 and 1,835.48

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Solution

The fourth proportional to 3,161.72, 4,363.17 and 1,835.48 is: 2,532.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.72 : 4,363.17 = 1,835.48 : x
  2. Step 2: Convert to fraction form
    3,161.72/4,363.17 = 1,835.48/x
  3. Step 3: Cross multiply
    3,161.72x = 4,363.17 × 1,835.48
  4. Step 4: Simplify right side
    3,161.72x = 8,008,511.27
  5. Step 5: Solve for x
    x = 8,008,511.27/3,161.72
  6. Step 6: Final answer
    x = 2,532.96

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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.