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Finding the Third Proportional to 1,986,634.50 and 4,290,809

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Solution

The third proportional to 1,986,634.50 and 4,290,809 is: 9,267,453.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,634.50 : 4,290,809 = 4,290,809 : x
  2. Step 2: Convert to fraction form
    1,986,634.50/4,290,809 = 4,290,809/x
  3. Step 3: Cross multiply
    1,986,634.50x = 4,290,809 × 4,290,809
  4. Step 4: Simplify right side
    1,986,634.50x = 18,411,041,874,481
  5. Step 5: Solve for x
    x = 18,411,041,874,481/1,986,634.50
  6. Step 6: Final answer
    x = 9,267,453.01

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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.