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Finding the Third Proportional to 7,882,146 and 16,979,778

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Solution

The third proportional to 7,882,146 and 16,979,778 is: 36,577,965.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882,146 : 16,979,778 = 16,979,778 : x
  2. Step 2: Convert to fraction form
    7,882,146/16,979,778 = 16,979,778/x
  3. Step 3: Cross multiply
    7,882,146x = 16,979,778 × 16,979,778
  4. Step 4: Simplify right side
    7,882,146x = 288,312,860,929,284
  5. Step 5: Solve for x
    x = 288,312,860,929,284/7,882,146
  6. Step 6: Final answer
    x = 36,577,965.05

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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.