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Finding the Third Proportional to 21,284,849 and 46,690,128

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Solution

The third proportional to 21,284,849 and 46,690,128 is: 102,418,769.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284,849 : 46,690,128 = 46,690,128 : x
  2. Step 2: Convert to fraction form
    21,284,849/46,690,128 = 46,690,128/x
  3. Step 3: Cross multiply
    21,284,849x = 46,690,128 × 46,690,128
  4. Step 4: Simplify right side
    21,284,849x = 2,179,968,052,656,384
  5. Step 5: Solve for x
    x = 2,179,968,052,656,384/21,284,849
  6. Step 6: Final answer
    x = 102,418,769.93

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.