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Finding the Third Proportional to 21,988,072 and 47,879,696

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Solution

The third proportional to 21,988,072 and 47,879,696 is: 104,259,495.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988,072 : 47,879,696 = 47,879,696 : x
  2. Step 2: Convert to fraction form
    21,988,072/47,879,696 = 47,879,696/x
  3. Step 3: Cross multiply
    21,988,072x = 47,879,696 × 47,879,696
  4. Step 4: Simplify right side
    21,988,072x = 2,292,465,289,052,416
  5. Step 5: Solve for x
    x = 2,292,465,289,052,416/21,988,072
  6. Step 6: Final answer
    x = 104,259,495.29

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.