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Finding the Third Proportional to 3,867.75 and 7,254.56

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Solution

The third proportional to 3,867.75 and 7,254.56 is: 13,607.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.75 : 7,254.56 = 7,254.56 : x
  2. Step 2: Convert to fraction form
    3,867.75/7,254.56 = 7,254.56/x
  3. Step 3: Cross multiply
    3,867.75x = 7,254.56 × 7,254.56
  4. Step 4: Simplify right side
    3,867.75x = 52,628,677.07
  5. Step 5: Solve for x
    x = 52,628,677.07/3,867.75
  6. Step 6: Final answer
    x = 13,607.05

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Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.