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Finding the Third Proportional to 2,353 and 3,921.50

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Solution

The third proportional to 2,353 and 3,921.50 is: 6,535.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353 : 3,921.50 = 3,921.50 : x
  2. Step 2: Convert to fraction form
    2,353/3,921.50 = 3,921.50/x
  3. Step 3: Cross multiply
    2,353x = 3,921.50 × 3,921.50
  4. Step 4: Simplify right side
    2,353x = 15,378,162.25
  5. Step 5: Solve for x
    x = 15,378,162.25/2,353
  6. Step 6: Final answer
    x = 6,535.56

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.