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Finding the Third Proportional to 30,966 and 68,733.50

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Solution

The third proportional to 30,966 and 68,733.50 is: 152,563.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,966 : 68,733.50 = 68,733.50 : x
  2. Step 2: Convert to fraction form
    30,966/68,733.50 = 68,733.50/x
  3. Step 3: Cross multiply
    30,966x = 68,733.50 × 68,733.50
  4. Step 4: Simplify right side
    30,966x = 4,724,294,022.25
  5. Step 5: Solve for x
    x = 4,724,294,022.25/30,966
  6. Step 6: Final answer
    x = 152,563.91

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.