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Finding the Third Proportional to 1,630.13 and 3,161.53

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Solution

The third proportional to 1,630.13 and 3,161.53 is: 6,131.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.13 : 3,161.53 = 3,161.53 : x
  2. Step 2: Convert to fraction form
    1,630.13/3,161.53 = 3,161.53/x
  3. Step 3: Cross multiply
    1,630.13x = 3,161.53 × 3,161.53
  4. Step 4: Simplify right side
    1,630.13x = 9,995,279.84
  5. Step 5: Solve for x
    x = 9,995,279.84/1,630.13
  6. Step 6: Final answer
    x = 6,131.60

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Why These Related Problems?

These problems maintain the same ratio (1.94) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.