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Finding the Third Proportional to 3,590,997.75 and 7,979,146.50

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Solution

The third proportional to 3,590,997.75 and 7,979,146.50 is: 17,729,551.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590,997.75 : 7,979,146.50 = 7,979,146.50 : x
  2. Step 2: Convert to fraction form
    3,590,997.75/7,979,146.50 = 7,979,146.50/x
  3. Step 3: Cross multiply
    3,590,997.75x = 7,979,146.50 × 7,979,146.50
  4. Step 4: Simplify right side
    3,590,997.75x = 63,666,778,868,462.25
  5. Step 5: Solve for x
    x = 63,666,778,868,462.25/3,590,997.75
  6. Step 6: Final answer
    x = 17,729,551.31

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.