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Finding the Third Proportional to 9,617,145 and 20,307,378

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Solution

The third proportional to 9,617,145 and 20,307,378 is: 42,880,667.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,617,145 : 20,307,378 = 20,307,378 : x
  2. Step 2: Convert to fraction form
    9,617,145/20,307,378 = 20,307,378/x
  3. Step 3: Cross multiply
    9,617,145x = 20,307,378 × 20,307,378
  4. Step 4: Simplify right side
    9,617,145x = 412,389,601,234,884
  5. Step 5: Solve for x
    x = 412,389,601,234,884/9,617,145
  6. Step 6: Final answer
    x = 42,880,667.94

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.