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Finding the Third Proportional to 6,687,420.75 and 10,627,790.63

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Solution

The third proportional to 6,687,420.75 and 10,627,790.63 is: 16,889,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687,420.75 : 10,627,790.63 = 10,627,790.63 : x
  2. Step 2: Convert to fraction form
    6,687,420.75/10,627,790.63 = 10,627,790.63/x
  3. Step 3: Cross multiply
    6,687,420.75x = 10,627,790.63 × 10,627,790.63
  4. Step 4: Simplify right side
    6,687,420.75x = 112,949,933,568,837.89
  5. Step 5: Solve for x
    x = 112,949,933,568,837.89/6,687,420.75
  6. Step 6: Final answer
    x = 16,889,909.85

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.