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Finding the Third Proportional to 13,106,717 and 20,515,454

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Solution

The third proportional to 13,106,717 and 20,515,454 is: 32,112,072.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106,717 : 20,515,454 = 20,515,454 : x
  2. Step 2: Convert to fraction form
    13,106,717/20,515,454 = 20,515,454/x
  3. Step 3: Cross multiply
    13,106,717x = 20,515,454 × 20,515,454
  4. Step 4: Simplify right side
    13,106,717x = 420,883,852,826,116
  5. Step 5: Solve for x
    x = 420,883,852,826,116/13,106,717
  6. Step 6: Final answer
    x = 32,112,072.98

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.