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Finding the Third Proportional to 1,986,897 and 4,291,386

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Solution

The third proportional to 1,986,897 and 4,291,386 is: 9,268,720.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,897 : 4,291,386 = 4,291,386 : x
  2. Step 2: Convert to fraction form
    1,986,897/4,291,386 = 4,291,386/x
  3. Step 3: Cross multiply
    1,986,897x = 4,291,386 × 4,291,386
  4. Step 4: Simplify right side
    1,986,897x = 18,415,993,800,996
  5. Step 5: Solve for x
    x = 18,415,993,800,996/1,986,897
  6. Step 6: Final answer
    x = 9,268,720.93

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.