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Finding the Third Proportional to 21,315,393 and 46,248,678

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Solution

The third proportional to 21,315,393 and 46,248,678 is: 100,347,209.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,393 : 46,248,678 = 46,248,678 : x
  2. Step 2: Convert to fraction form
    21,315,393/46,248,678 = 46,248,678/x
  3. Step 3: Cross multiply
    21,315,393x = 46,248,678 × 46,248,678
  4. Step 4: Simplify right side
    21,315,393x = 2,138,940,216,747,684
  5. Step 5: Solve for x
    x = 2,138,940,216,747,684/21,315,393
  6. Step 6: Final answer
    x = 100,347,209.96

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.