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Finding the Third Proportional to 12,286,989 and 19,077,891

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Solution

The third proportional to 12,286,989 and 19,077,891 is: 29,622,059.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286,989 : 19,077,891 = 19,077,891 : x
  2. Step 2: Convert to fraction form
    12,286,989/19,077,891 = 19,077,891/x
  3. Step 3: Cross multiply
    12,286,989x = 19,077,891 × 19,077,891
  4. Step 4: Simplify right side
    12,286,989x = 363,965,925,007,881
  5. Step 5: Solve for x
    x = 363,965,925,007,881/12,286,989
  6. Step 6: Final answer
    x = 29,622,059.97

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.