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Finding the Third Proportional to 3,317,792 and 7,278,400

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Solution

The third proportional to 3,317,792 and 7,278,400 is: 15,966,976.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317,792 : 7,278,400 = 7,278,400 : x
  2. Step 2: Convert to fraction form
    3,317,792/7,278,400 = 7,278,400/x
  3. Step 3: Cross multiply
    3,317,792x = 7,278,400 × 7,278,400
  4. Step 4: Simplify right side
    3,317,792x = 52,975,106,560,000
  5. Step 5: Solve for x
    x = 52,975,106,560,000/3,317,792
  6. Step 6: Final answer
    x = 15,966,976.40

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.