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Finding the Third Proportional to 28,078,384 and 61,324,120

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Solution

The third proportional to 28,078,384 and 61,324,120 is: 133,933,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078,384 : 61,324,120 = 61,324,120 : x
  2. Step 2: Convert to fraction form
    28,078,384/61,324,120 = 61,324,120/x
  3. Step 3: Cross multiply
    28,078,384x = 61,324,120 × 61,324,120
  4. Step 4: Simplify right side
    28,078,384x = 3,760,647,693,774,400
  5. Step 5: Solve for x
    x = 3,760,647,693,774,400/28,078,384
  6. Step 6: Final answer
    x = 133,933,907.80

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.