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Finding the Fourth Proportional to 8,650.70, 12,976.23 and 3,384.98

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Solution

The fourth proportional to 8,650.70, 12,976.23 and 3,384.98 is: 5,077.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.70 : 12,976.23 = 3,384.98 : x
  2. Step 2: Convert to fraction form
    8,650.70/12,976.23 = 3,384.98/x
  3. Step 3: Cross multiply
    8,650.70x = 12,976.23 × 3,384.98
  4. Step 4: Simplify right side
    8,650.70x = 43,924,279.03
  5. Step 5: Solve for x
    x = 43,924,279.03/8,650.70
  6. Step 6: Final answer
    x = 5,077.54

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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.