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Finding the Third Proportional to 38,621,886 and 80,418,492

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Solution

The third proportional to 38,621,886 and 80,418,492 is: 167,447,386.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,621,886 : 80,418,492 = 80,418,492 : x
  2. Step 2: Convert to fraction form
    38,621,886/80,418,492 = 80,418,492/x
  3. Step 3: Cross multiply
    38,621,886x = 80,418,492 × 80,418,492
  4. Step 4: Simplify right side
    38,621,886x = 6,467,133,855,554,064
  5. Step 5: Solve for x
    x = 6,467,133,855,554,064/38,621,886
  6. Step 6: Final answer
    x = 167,447,386.06

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.