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Finding the Third Proportional to 19,388,236.50 and 30,021,351.75

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Solution

The third proportional to 19,388,236.50 and 30,021,351.75 is: 46,485,999.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,388,236.50 : 30,021,351.75 = 30,021,351.75 : x
  2. Step 2: Convert to fraction form
    19,388,236.50/30,021,351.75 = 30,021,351.75/x
  3. Step 3: Cross multiply
    19,388,236.50x = 30,021,351.75 × 30,021,351.75
  4. Step 4: Simplify right side
    19,388,236.50x = 901,281,560,897,228
  5. Step 5: Solve for x
    x = 901,281,560,897,228/19,388,236.50
  6. Step 6: Final answer
    x = 46,485,999.95

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.