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Finding the Third Proportional to 9,470,947 and 20,455,214

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Solution

The third proportional to 9,470,947 and 20,455,214 is: 44,178,874.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,470,947 : 20,455,214 = 20,455,214 : x
  2. Step 2: Convert to fraction form
    9,470,947/20,455,214 = 20,455,214/x
  3. Step 3: Cross multiply
    9,470,947x = 20,455,214 × 20,455,214
  4. Step 4: Simplify right side
    9,470,947x = 418,415,779,785,796
  5. Step 5: Solve for x
    x = 418,415,779,785,796/9,470,947
  6. Step 6: Final answer
    x = 44,178,874.59

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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.