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Finding the Third Proportional to 1,811,031.75 and 3,936,561.75

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Solution

The third proportional to 1,811,031.75 and 3,936,561.75 is: 8,556,734.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811,031.75 : 3,936,561.75 = 3,936,561.75 : x
  2. Step 2: Convert to fraction form
    1,811,031.75/3,936,561.75 = 3,936,561.75/x
  3. Step 3: Cross multiply
    1,811,031.75x = 3,936,561.75 × 3,936,561.75
  4. Step 4: Simplify right side
    1,811,031.75x = 15,496,518,411,563.06
  5. Step 5: Solve for x
    x = 15,496,518,411,563.06/1,811,031.75
  6. Step 6: Final answer
    x = 8,556,734.81

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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.