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Finding the Third Proportional to 7,431,871.50 and 11,486,103.75

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Solution

The third proportional to 7,431,871.50 and 11,486,103.75 is: 17,751,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431,871.50 : 11,486,103.75 = 11,486,103.75 : x
  2. Step 2: Convert to fraction form
    7,431,871.50/11,486,103.75 = 11,486,103.75/x
  3. Step 3: Cross multiply
    7,431,871.50x = 11,486,103.75 × 11,486,103.75
  4. Step 4: Simplify right side
    7,431,871.50x = 131,930,579,355,764.06
  5. Step 5: Solve for x
    x = 131,930,579,355,764.06/7,431,871.50
  6. Step 6: Final answer
    x = 17,751,999.53

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.