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Finding the Third Proportional to 15,489,816 and 33,666,240

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Solution

The third proportional to 15,489,816 and 33,666,240 is: 73,171,670.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,489,816 : 33,666,240 = 33,666,240 : x
  2. Step 2: Convert to fraction form
    15,489,816/33,666,240 = 33,666,240/x
  3. Step 3: Cross multiply
    15,489,816x = 33,666,240 × 33,666,240
  4. Step 4: Simplify right side
    15,489,816x = 1,133,415,715,737,600
  5. Step 5: Solve for x
    x = 1,133,415,715,737,600/15,489,816
  6. Step 6: Final answer
    x = 73,171,670.71

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.