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Finding the Third Proportional to 3,157,461 and 4,399,128

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Solution

The third proportional to 3,157,461 and 4,399,128 is: 6,129,078.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157,461 : 4,399,128 = 4,399,128 : x
  2. Step 2: Convert to fraction form
    3,157,461/4,399,128 = 4,399,128/x
  3. Step 3: Cross multiply
    3,157,461x = 4,399,128 × 4,399,128
  4. Step 4: Simplify right side
    3,157,461x = 19,352,327,160,384
  5. Step 5: Solve for x
    x = 19,352,327,160,384/3,157,461
  6. Step 6: Final answer
    x = 6,129,078.76

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.