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Finding the Third Proportional to 50,869 and 77,815.50

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Solution

The third proportional to 50,869 and 77,815.50 is: 119,036.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,869 : 77,815.50 = 77,815.50 : x
  2. Step 2: Convert to fraction form
    50,869/77,815.50 = 77,815.50/x
  3. Step 3: Cross multiply
    50,869x = 77,815.50 × 77,815.50
  4. Step 4: Simplify right side
    50,869x = 6,055,252,040.25
  5. Step 5: Solve for x
    x = 6,055,252,040.25/50,869
  6. Step 6: Final answer
    x = 119,036.19

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.