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Finding the Third Proportional to 3,508,920 and 7,539,986.25

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Solution

The third proportional to 3,508,920 and 7,539,986.25 is: 16,201,963.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508,920 : 7,539,986.25 = 7,539,986.25 : x
  2. Step 2: Convert to fraction form
    3,508,920/7,539,986.25 = 7,539,986.25/x
  3. Step 3: Cross multiply
    3,508,920x = 7,539,986.25 × 7,539,986.25
  4. Step 4: Simplify right side
    3,508,920x = 56,851,392,650,189.06
  5. Step 5: Solve for x
    x = 56,851,392,650,189.06/3,508,920
  6. Step 6: Final answer
    x = 16,201,963.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.