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Finding the Third Proportional to 21,637,670 and 45,689,782

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Solution

The third proportional to 21,637,670 and 45,689,782 is: 96,477,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,637,670 : 45,689,782 = 45,689,782 : x
  2. Step 2: Convert to fraction form
    21,637,670/45,689,782 = 45,689,782/x
  3. Step 3: Cross multiply
    21,637,670x = 45,689,782 × 45,689,782
  4. Step 4: Simplify right side
    21,637,670x = 2,087,556,179,207,524
  5. Step 5: Solve for x
    x = 2,087,556,179,207,524/21,637,670
  6. Step 6: Final answer
    x = 96,477,863.80

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.