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Finding the Third Proportional to 15,728,878.69 and 34,180,363.97

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Solution

The third proportional to 15,728,878.69 and 34,180,363.97 is: 74,277,213.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,728,878.69 : 34,180,363.97 = 34,180,363.97 : x
  2. Step 2: Convert to fraction form
    15,728,878.69/34,180,363.97 = 34,180,363.97/x
  3. Step 3: Cross multiply
    15,728,878.69x = 34,180,363.97 × 34,180,363.97
  4. Step 4: Simplify right side
    15,728,878.69x = 1,168,297,281,036,223.25
  5. Step 5: Solve for x
    x = 1,168,297,281,036,223.25/15,728,878.69
  6. Step 6: Final answer
    x = 74,277,213.54

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.