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Finding the Third Proportional to 15,690,520 and 36,640,028

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Solution

The third proportional to 15,690,520 and 36,640,028 is: 85,560,685.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690,520 : 36,640,028 = 36,640,028 : x
  2. Step 2: Convert to fraction form
    15,690,520/36,640,028 = 36,640,028/x
  3. Step 3: Cross multiply
    15,690,520x = 36,640,028 × 36,640,028
  4. Step 4: Simplify right side
    15,690,520x = 1,342,491,651,840,784
  5. Step 5: Solve for x
    x = 1,342,491,651,840,784/15,690,520
  6. Step 6: Final answer
    x = 85,560,685.81

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.