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Finding the Third Proportional to 21,361,751 and 45,908,458

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Solution

The third proportional to 21,361,751 and 45,908,458 is: 98,661,692.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,361,751 : 45,908,458 = 45,908,458 : x
  2. Step 2: Convert to fraction form
    21,361,751/45,908,458 = 45,908,458/x
  3. Step 3: Cross multiply
    21,361,751x = 45,908,458 × 45,908,458
  4. Step 4: Simplify right side
    21,361,751x = 2,107,586,515,937,764
  5. Step 5: Solve for x
    x = 2,107,586,515,937,764/21,361,751
  6. Step 6: Final answer
    x = 98,661,692.85

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.