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Finding the Third Proportional to 9,354,643 and 20,002,009

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Solution

The third proportional to 9,354,643 and 20,002,009 is: 42,768,106.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,354,643 : 20,002,009 = 20,002,009 : x
  2. Step 2: Convert to fraction form
    9,354,643/20,002,009 = 20,002,009/x
  3. Step 3: Cross multiply
    9,354,643x = 20,002,009 × 20,002,009
  4. Step 4: Simplify right side
    9,354,643x = 400,080,364,036,081
  5. Step 5: Solve for x
    x = 400,080,364,036,081/9,354,643
  6. Step 6: Final answer
    x = 42,768,106.07

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.