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Finding the Third Proportional to 3,897,465,664 and 9,197,321,428

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Solution

The third proportional to 3,897,465,664 and 9,197,321,428 is: 21,704,032,502.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897,465,664 : 9,197,321,428 = 9,197,321,428 : x
  2. Step 2: Convert to fraction form
    3,897,465,664/9,197,321,428 = 9,197,321,428/x
  3. Step 3: Cross multiply
    3,897,465,664x = 9,197,321,428 × 9,197,321,428
  4. Step 4: Simplify right side
    3,897,465,664x = 84,590,721,449,947,955,200
  5. Step 5: Solve for x
    x = 84,590,721,449,947,955,200/3,897,465,664
  6. Step 6: Final answer
    x = 21,704,032,502.79

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.