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Finding the Third Proportional to 12,756,644.44 and 19,699,005.09

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Solution

The third proportional to 12,756,644.44 and 19,699,005.09 is: 30,419,504.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756,644.44 : 19,699,005.09 = 19,699,005.09 : x
  2. Step 2: Convert to fraction form
    12,756,644.44/19,699,005.09 = 19,699,005.09/x
  3. Step 3: Cross multiply
    12,756,644.44x = 19,699,005.09 × 19,699,005.09
  4. Step 4: Simplify right side
    12,756,644.44x = 388,050,801,683,588.44
  5. Step 5: Solve for x
    x = 388,050,801,683,588.44/12,756,644.44
  6. Step 6: Final answer
    x = 30,419,504.41

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.