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Finding the Third Proportional to 3,145,991.91 and 6,892,239.38

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Solution

The third proportional to 3,145,991.91 and 6,892,239.38 is: 15,099,518.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145,991.91 : 6,892,239.38 = 6,892,239.38 : x
  2. Step 2: Convert to fraction form
    3,145,991.91/6,892,239.38 = 6,892,239.38/x
  3. Step 3: Cross multiply
    3,145,991.91x = 6,892,239.38 × 6,892,239.38
  4. Step 4: Simplify right side
    3,145,991.91x = 47,502,963,602,300.39
  5. Step 5: Solve for x
    x = 47,502,963,602,300.39/3,145,991.91
  6. Step 6: Final answer
    x = 15,099,518.69

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.