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Finding the Third Proportional to 9,917,862,295 and 21,579,046,440

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Solution

The third proportional to 9,917,862,295 and 21,579,046,440 is: 46,951,170,666.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917,862,295 : 21,579,046,440 = 21,579,046,440 : x
  2. Step 2: Convert to fraction form
    9,917,862,295/21,579,046,440 = 21,579,046,440/x
  3. Step 3: Cross multiply
    9,917,862,295x = 21,579,046,440 × 21,579,046,440
  4. Step 4: Simplify right side
    9,917,862,295x = 465,655,245,259,676,647,424
  5. Step 5: Solve for x
    x = 465,655,245,259,676,647,424/9,917,862,295
  6. Step 6: Final answer
    x = 46,951,170,666.53

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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.