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Finding the Third Proportional to 2,756.53 and 4,189.22

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Solution

The third proportional to 2,756.53 and 4,189.22 is: 6,366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.53 : 4,189.22 = 4,189.22 : x
  2. Step 2: Convert to fraction form
    2,756.53/4,189.22 = 4,189.22/x
  3. Step 3: Cross multiply
    2,756.53x = 4,189.22 × 4,189.22
  4. Step 4: Simplify right side
    2,756.53x = 17,549,553.74
  5. Step 5: Solve for x
    x = 17,549,553.74/2,756.53
  6. Step 6: Final answer
    x = 6,366.54

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.