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Finding the Third Proportional to 9,718,855 and 20,996,354

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Solution

The third proportional to 9,718,855 and 20,996,354 is: 45,359,960.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,718,855 : 20,996,354 = 20,996,354 : x
  2. Step 2: Convert to fraction form
    9,718,855/20,996,354 = 20,996,354/x
  3. Step 3: Cross multiply
    9,718,855x = 20,996,354 × 20,996,354
  4. Step 4: Simplify right side
    9,718,855x = 440,846,881,293,316
  5. Step 5: Solve for x
    x = 440,846,881,293,316/9,718,855
  6. Step 6: Final answer
    x = 45,359,960.75

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.