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Finding the Third Proportional to 6,458,542 and 10,000,378

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Solution

The third proportional to 6,458,542 and 10,000,378 is: 15,484,541.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,458,542 : 10,000,378 = 10,000,378 : x
  2. Step 2: Convert to fraction form
    6,458,542/10,000,378 = 10,000,378/x
  3. Step 3: Cross multiply
    6,458,542x = 10,000,378 × 10,000,378
  4. Step 4: Simplify right side
    6,458,542x = 100,007,560,142,884
  5. Step 5: Solve for x
    x = 100,007,560,142,884/6,458,542
  6. Step 6: Final answer
    x = 15,484,541.27

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.