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Finding the Third Proportional to 10,989,864 and 16,811,172

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Solution

The third proportional to 10,989,864 and 16,811,172 is: 25,716,014.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989,864 : 16,811,172 = 16,811,172 : x
  2. Step 2: Convert to fraction form
    10,989,864/16,811,172 = 16,811,172/x
  3. Step 3: Cross multiply
    10,989,864x = 16,811,172 × 16,811,172
  4. Step 4: Simplify right side
    10,989,864x = 282,615,504,013,584
  5. Step 5: Solve for x
    x = 282,615,504,013,584/10,989,864
  6. Step 6: Final answer
    x = 25,716,014.69

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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.