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Finding the Third Proportional to 13,298,649 and 20,216,124

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Solution

The third proportional to 13,298,649 and 20,216,124 is: 30,731,818.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298,649 : 20,216,124 = 20,216,124 : x
  2. Step 2: Convert to fraction form
    13,298,649/20,216,124 = 20,216,124/x
  3. Step 3: Cross multiply
    13,298,649x = 20,216,124 × 20,216,124
  4. Step 4: Simplify right side
    13,298,649x = 408,691,669,583,376
  5. Step 5: Solve for x
    x = 408,691,669,583,376/13,298,649
  6. Step 6: Final answer
    x = 30,731,818.67

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.