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Finding the Third Proportional to 3,416.63 and 5,311.69

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Solution

The third proportional to 3,416.63 and 5,311.69 is: 8,257.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.63 : 5,311.69 = 5,311.69 : x
  2. Step 2: Convert to fraction form
    3,416.63/5,311.69 = 5,311.69/x
  3. Step 3: Cross multiply
    3,416.63x = 5,311.69 × 5,311.69
  4. Step 4: Simplify right side
    3,416.63x = 28,214,024.10
  5. Step 5: Solve for x
    x = 28,214,024.10/3,416.63
  6. Step 6: Final answer
    x = 8,257.86

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.