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Finding the Third Proportional to 4,189,276 and 6,405,654

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Solution

The third proportional to 4,189,276 and 6,405,654 is: 9,794,628.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189,276 : 6,405,654 = 6,405,654 : x
  2. Step 2: Convert to fraction form
    4,189,276/6,405,654 = 6,405,654/x
  3. Step 3: Cross multiply
    4,189,276x = 6,405,654 × 6,405,654
  4. Step 4: Simplify right side
    4,189,276x = 41,032,403,167,716
  5. Step 5: Solve for x
    x = 41,032,403,167,716/4,189,276
  6. Step 6: Final answer
    x = 9,794,628.75

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.