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Finding the Third Proportional to 9,185,551 and 19,775,138

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Solution

The third proportional to 9,185,551 and 19,775,138 is: 42,572,958.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,185,551 : 19,775,138 = 19,775,138 : x
  2. Step 2: Convert to fraction form
    9,185,551/19,775,138 = 19,775,138/x
  3. Step 3: Cross multiply
    9,185,551x = 19,775,138 × 19,775,138
  4. Step 4: Simplify right side
    9,185,551x = 391,056,082,919,044
  5. Step 5: Solve for x
    x = 391,056,082,919,044/9,185,551
  6. Step 6: Final answer
    x = 42,572,958.65

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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.