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Finding the Third Proportional to 4,277,470.78 and 9,511,295.91

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Solution

The third proportional to 4,277,470.78 and 9,511,295.91 is: 21,149,121.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,277,470.78 : 9,511,295.91 = 9,511,295.91 : x
  2. Step 2: Convert to fraction form
    4,277,470.78/9,511,295.91 = 9,511,295.91/x
  3. Step 3: Cross multiply
    4,277,470.78x = 9,511,295.91 × 9,511,295.91
  4. Step 4: Simplify right side
    4,277,470.78x = 90,464,749,816,248.02
  5. Step 5: Solve for x
    x = 90,464,749,816,248.02/4,277,470.78
  6. Step 6: Final answer
    x = 21,149,121.63

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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.