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Finding the Third Proportional to 38,306,356 and 82,690,088

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Solution

The third proportional to 38,306,356 and 82,690,088 is: 178,499,115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,306,356 : 82,690,088 = 82,690,088 : x
  2. Step 2: Convert to fraction form
    38,306,356/82,690,088 = 82,690,088/x
  3. Step 3: Cross multiply
    38,306,356x = 82,690,088 × 82,690,088
  4. Step 4: Simplify right side
    38,306,356x = 6,837,650,653,447,744
  5. Step 5: Solve for x
    x = 6,837,650,653,447,744/38,306,356
  6. Step 6: Final answer
    x = 178,499,115.22

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.