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Finding the Third Proportional to 19,869 and 30,166.50

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Solution

The third proportional to 19,869 and 30,166.50 is: 45,800.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869 : 30,166.50 = 30,166.50 : x
  2. Step 2: Convert to fraction form
    19,869/30,166.50 = 30,166.50/x
  3. Step 3: Cross multiply
    19,869x = 30,166.50 × 30,166.50
  4. Step 4: Simplify right side
    19,869x = 910,017,722.25
  5. Step 5: Solve for x
    x = 910,017,722.25/19,869
  6. Step 6: Final answer
    x = 45,800.88

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.