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Finding the Third Proportional to 3,959,172 and 6,120,702

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Solution

The third proportional to 3,959,172 and 6,120,702 is: 9,462,330.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959,172 : 6,120,702 = 6,120,702 : x
  2. Step 2: Convert to fraction form
    3,959,172/6,120,702 = 6,120,702/x
  3. Step 3: Cross multiply
    3,959,172x = 6,120,702 × 6,120,702
  4. Step 4: Simplify right side
    3,959,172x = 37,462,992,972,804
  5. Step 5: Solve for x
    x = 37,462,992,972,804/3,959,172
  6. Step 6: Final answer
    x = 9,462,330.25

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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.