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Finding the Third Proportional to 12,489,799.22 and 18,734,697.56

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Solution

The third proportional to 12,489,799.22 and 18,734,697.56 is: 28,102,044.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,489,799.22 : 18,734,697.56 = 18,734,697.56 : x
  2. Step 2: Convert to fraction form
    12,489,799.22/18,734,697.56 = 18,734,697.56/x
  3. Step 3: Cross multiply
    12,489,799.22x = 18,734,697.56 × 18,734,697.56
  4. Step 4: Simplify right side
    12,489,799.22x = 350,988,892,758,343.44
  5. Step 5: Solve for x
    x = 350,988,892,758,343.44/12,489,799.22
  6. Step 6: Final answer
    x = 28,102,044.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.