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Finding the Third Proportional to 5,190.75 and 5,720.63

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Solution

The third proportional to 5,190.75 and 5,720.63 is: 6,304.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.75 : 5,720.63 = 5,720.63 : x
  2. Step 2: Convert to fraction form
    5,190.75/5,720.63 = 5,720.63/x
  3. Step 3: Cross multiply
    5,190.75x = 5,720.63 × 5,720.63
  4. Step 4: Simplify right side
    5,190.75x = 32,725,550.39
  5. Step 5: Solve for x
    x = 32,725,550.39/5,190.75
  6. Step 6: Final answer
    x = 6,304.59

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.