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Finding the Third Proportional to 51,620.50 and 75,724.75

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Solution

The third proportional to 51,620.50 and 75,724.75 is: 111,084.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,620.50 : 75,724.75 = 75,724.75 : x
  2. Step 2: Convert to fraction form
    51,620.50/75,724.75 = 75,724.75/x
  3. Step 3: Cross multiply
    51,620.50x = 75,724.75 × 75,724.75
  4. Step 4: Simplify right side
    51,620.50x = 5,734,237,762.56
  5. Step 5: Solve for x
    x = 5,734,237,762.56/51,620.50
  6. Step 6: Final answer
    x = 111,084.51

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.