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Finding the Third Proportional to 21,399,912 and 46,290,288

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Solution

The third proportional to 21,399,912 and 46,290,288 is: 100,130,821.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,399,912 : 46,290,288 = 46,290,288 : x
  2. Step 2: Convert to fraction form
    21,399,912/46,290,288 = 46,290,288/x
  3. Step 3: Cross multiply
    21,399,912x = 46,290,288 × 46,290,288
  4. Step 4: Simplify right side
    21,399,912x = 2,142,790,763,122,944
  5. Step 5: Solve for x
    x = 2,142,790,763,122,944/21,399,912
  6. Step 6: Final answer
    x = 100,130,821.24

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.