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Finding the Third Proportional to 689,829,817,869 and 1,509,702,982,326

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Solution

The third proportional to 689,829,817,869 and 1,509,702,982,326 is: 3,304,007,794,103.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,829,817,869 : 1,509,702,982,326 = 1,509,702,982,326 : x
  2. Step 2: Convert to fraction form
    689,829,817,869/1,509,702,982,326 = 1,509,702,982,326/x
  3. Step 3: Cross multiply
    689,829,817,869x = 1,509,702,982,326 × 1,509,702,982,326
  4. Step 4: Simplify right side
    689,829,817,869x = 2,279,203,094,844,018,794,692,608
  5. Step 5: Solve for x
    x = 2,279,203,094,844,018,794,692,608/689,829,817,869
  6. Step 6: Final answer
    x = 3,304,007,794,103.28

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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.