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Finding the Third Proportional to 1,638,868 and 2,570,899

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Solution

The third proportional to 1,638,868 and 2,570,899 is: 4,032,979.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,868 : 2,570,899 = 2,570,899 : x
  2. Step 2: Convert to fraction form
    1,638,868/2,570,899 = 2,570,899/x
  3. Step 3: Cross multiply
    1,638,868x = 2,570,899 × 2,570,899
  4. Step 4: Simplify right side
    1,638,868x = 6,609,521,668,201
  5. Step 5: Solve for x
    x = 6,609,521,668,201/1,638,868
  6. Step 6: Final answer
    x = 4,032,979.88

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.