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Finding the Third Proportional to 15,724,990 and 33,636,021

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Solution

The third proportional to 15,724,990 and 33,636,021 is: 71,948,020.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,724,990 : 33,636,021 = 33,636,021 : x
  2. Step 2: Convert to fraction form
    15,724,990/33,636,021 = 33,636,021/x
  3. Step 3: Cross multiply
    15,724,990x = 33,636,021 × 33,636,021
  4. Step 4: Simplify right side
    15,724,990x = 1,131,381,908,712,441
  5. Step 5: Solve for x
    x = 1,131,381,908,712,441/15,724,990
  6. Step 6: Final answer
    x = 71,948,020.87

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.