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Finding the Third Proportional to 4,286,218 and 9,168,988

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Solution

The third proportional to 4,286,218 and 9,168,988 is: 19,614,107.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286,218 : 9,168,988 = 9,168,988 : x
  2. Step 2: Convert to fraction form
    4,286,218/9,168,988 = 9,168,988/x
  3. Step 3: Cross multiply
    4,286,218x = 9,168,988 × 9,168,988
  4. Step 4: Simplify right side
    4,286,218x = 84,070,340,944,144
  5. Step 5: Solve for x
    x = 84,070,340,944,144/4,286,218
  6. Step 6: Final answer
    x = 19,614,107.58

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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.