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Finding the Third Proportional to 9,771,615 and 21,470,544

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Solution

The third proportional to 9,771,615 and 21,470,544 is: 47,175,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,771,615 : 21,470,544 = 21,470,544 : x
  2. Step 2: Convert to fraction form
    9,771,615/21,470,544 = 21,470,544/x
  3. Step 3: Cross multiply
    9,771,615x = 21,470,544 × 21,470,544
  4. Step 4: Simplify right side
    9,771,615x = 460,984,259,655,936
  5. Step 5: Solve for x
    x = 460,984,259,655,936/9,771,615
  6. Step 6: Final answer
    x = 47,175,851.65

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.