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Finding the Third Proportional to 3,218.75 and 7,052.63

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Solution

The third proportional to 3,218.75 and 7,052.63 is: 15,453.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.75 : 7,052.63 = 7,052.63 : x
  2. Step 2: Convert to fraction form
    3,218.75/7,052.63 = 7,052.63/x
  3. Step 3: Cross multiply
    3,218.75x = 7,052.63 × 7,052.63
  4. Step 4: Simplify right side
    3,218.75x = 49,739,519.39
  5. Step 5: Solve for x
    x = 49,739,519.39/3,218.75
  6. Step 6: Final answer
    x = 15,453.05

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.