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Finding the Fourth Proportional to 5,384.99, 8,063.10 and 3,161.98

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Solution

The fourth proportional to 5,384.99, 8,063.10 and 3,161.98 is: 4,734.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.99 : 8,063.10 = 3,161.98 : x
  2. Step 2: Convert to fraction form
    5,384.99/8,063.10 = 3,161.98/x
  3. Step 3: Cross multiply
    5,384.99x = 8,063.10 × 3,161.98
  4. Step 4: Simplify right side
    5,384.99x = 25,495,360.94
  5. Step 5: Solve for x
    x = 25,495,360.94/5,384.99
  6. Step 6: Final answer
    x = 4,734.52

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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.