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Finding the Third Proportional to 12,154,789 and 18,540,893

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Solution

The third proportional to 12,154,789 and 18,540,893 is: 28,282,244.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154,789 : 18,540,893 = 18,540,893 : x
  2. Step 2: Convert to fraction form
    12,154,789/18,540,893 = 18,540,893/x
  3. Step 3: Cross multiply
    12,154,789x = 18,540,893 × 18,540,893
  4. Step 4: Simplify right side
    12,154,789x = 343,764,713,237,449
  5. Step 5: Solve for x
    x = 343,764,713,237,449/12,154,789
  6. Step 6: Final answer
    x = 28,282,244.41

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.