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Finding the Third Proportional to 3,787,876 and 8,137,928

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Solution

The third proportional to 3,787,876 and 8,137,928 is: 17,483,643.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787,876 : 8,137,928 = 8,137,928 : x
  2. Step 2: Convert to fraction form
    3,787,876/8,137,928 = 8,137,928/x
  3. Step 3: Cross multiply
    3,787,876x = 8,137,928 × 8,137,928
  4. Step 4: Simplify right side
    3,787,876x = 66,225,872,133,184
  5. Step 5: Solve for x
    x = 66,225,872,133,184/3,787,876
  6. Step 6: Final answer
    x = 17,483,643.11

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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.