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Finding the Third Proportional to 19,009,338 and 39,026,428.50

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Solution

The third proportional to 19,009,338 and 39,026,428.50 is: 80,121,786.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,009,338 : 39,026,428.50 = 39,026,428.50 : x
  2. Step 2: Convert to fraction form
    19,009,338/39,026,428.50 = 39,026,428.50/x
  3. Step 3: Cross multiply
    19,009,338x = 39,026,428.50 × 39,026,428.50
  4. Step 4: Simplify right side
    19,009,338x = 1,523,062,121,465,612.25
  5. Step 5: Solve for x
    x = 1,523,062,121,465,612.25/19,009,338
  6. Step 6: Final answer
    x = 80,121,786.54

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.