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Finding the Third Proportional to 21,284,872 and 46,690,173

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Solution

The third proportional to 21,284,872 and 46,690,173 is: 102,418,856.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284,872 : 46,690,173 = 46,690,173 : x
  2. Step 2: Convert to fraction form
    21,284,872/46,690,173 = 46,690,173/x
  3. Step 3: Cross multiply
    21,284,872x = 46,690,173 × 46,690,173
  4. Step 4: Simplify right side
    21,284,872x = 2,179,972,254,769,929
  5. Step 5: Solve for x
    x = 2,179,972,254,769,929/21,284,872
  6. Step 6: Final answer
    x = 102,418,856.68

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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.