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Finding the Third Proportional to 21,315,390 and 46,248,672

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Solution

The third proportional to 21,315,390 and 46,248,672 is: 100,347,198.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,390 : 46,248,672 = 46,248,672 : x
  2. Step 2: Convert to fraction form
    21,315,390/46,248,672 = 46,248,672/x
  3. Step 3: Cross multiply
    21,315,390x = 46,248,672 × 46,248,672
  4. Step 4: Simplify right side
    21,315,390x = 2,138,939,661,763,584
  5. Step 5: Solve for x
    x = 2,138,939,661,763,584/21,315,390
  6. Step 6: Final answer
    x = 100,347,198.05

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.