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Finding the Third Proportional to 5,165,019.75 and 7,720,541.25

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Solution

The third proportional to 5,165,019.75 and 7,720,541.25 is: 11,540,470.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165,019.75 : 7,720,541.25 = 7,720,541.25 : x
  2. Step 2: Convert to fraction form
    5,165,019.75/7,720,541.25 = 7,720,541.25/x
  3. Step 3: Cross multiply
    5,165,019.75x = 7,720,541.25 × 7,720,541.25
  4. Step 4: Simplify right side
    5,165,019.75x = 59,606,757,192,951.56
  5. Step 5: Solve for x
    x = 59,606,757,192,951.56/5,165,019.75
  6. Step 6: Final answer
    x = 11,540,470.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.