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Finding the Third Proportional to 38,747,970 and 84,305,718

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Solution

The third proportional to 38,747,970 and 84,305,718 is: 183,427,779.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,747,970 : 84,305,718 = 84,305,718 : x
  2. Step 2: Convert to fraction form
    38,747,970/84,305,718 = 84,305,718/x
  3. Step 3: Cross multiply
    38,747,970x = 84,305,718 × 84,305,718
  4. Step 4: Simplify right side
    38,747,970x = 7,107,454,087,495,524
  5. Step 5: Solve for x
    x = 7,107,454,087,495,524/38,747,970
  6. Step 6: Final answer
    x = 183,427,779.25

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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.