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Finding the Third Proportional to 3,231 and 5,362.50

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Solution

The third proportional to 3,231 and 5,362.50 is: 8,900.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231 : 5,362.50 = 5,362.50 : x
  2. Step 2: Convert to fraction form
    3,231/5,362.50 = 5,362.50/x
  3. Step 3: Cross multiply
    3,231x = 5,362.50 × 5,362.50
  4. Step 4: Simplify right side
    3,231x = 28,756,406.25
  5. Step 5: Solve for x
    x = 28,756,406.25/3,231
  6. Step 6: Final answer
    x = 8,900.16

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.