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Finding the Third Proportional to 3,978,036 and 6,118,080

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Solution

The third proportional to 3,978,036 and 6,118,080 is: 9,409,392.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,036 : 6,118,080 = 6,118,080 : x
  2. Step 2: Convert to fraction form
    3,978,036/6,118,080 = 6,118,080/x
  3. Step 3: Cross multiply
    3,978,036x = 6,118,080 × 6,118,080
  4. Step 4: Simplify right side
    3,978,036x = 37,430,902,886,400
  5. Step 5: Solve for x
    x = 37,430,902,886,400/3,978,036
  6. Step 6: Final answer
    x = 9,409,392.70

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.