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Finding the Third Proportional to 16,989,434 and 36,683,620

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Solution

The third proportional to 16,989,434 and 36,683,620 is: 79,207,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,989,434 : 36,683,620 = 36,683,620 : x
  2. Step 2: Convert to fraction form
    16,989,434/36,683,620 = 36,683,620/x
  3. Step 3: Cross multiply
    16,989,434x = 36,683,620 × 36,683,620
  4. Step 4: Simplify right side
    16,989,434x = 1,345,687,976,304,400
  5. Step 5: Solve for x
    x = 1,345,687,976,304,400/16,989,434
  6. Step 6: Final answer
    x = 79,207,345.95

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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.