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Finding the Third Proportional to 3,871.13 and 5,543.44

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Solution

The third proportional to 3,871.13 and 5,543.44 is: 7,938.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.13 : 5,543.44 = 5,543.44 : x
  2. Step 2: Convert to fraction form
    3,871.13/5,543.44 = 5,543.44/x
  3. Step 3: Cross multiply
    3,871.13x = 5,543.44 × 5,543.44
  4. Step 4: Simplify right side
    3,871.13x = 30,729,699.32
  5. Step 5: Solve for x
    x = 30,729,699.32/3,871.13
  6. Step 6: Final answer
    x = 7,938.18

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.