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Finding the Third Proportional to 12,926,474 and 20,042,943

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Solution

The third proportional to 12,926,474 and 20,042,943 is: 31,077,273.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,926,474 : 20,042,943 = 20,042,943 : x
  2. Step 2: Convert to fraction form
    12,926,474/20,042,943 = 20,042,943/x
  3. Step 3: Cross multiply
    12,926,474x = 20,042,943 × 20,042,943
  4. Step 4: Simplify right side
    12,926,474x = 401,719,564,101,249
  5. Step 5: Solve for x
    x = 401,719,564,101,249/12,926,474
  6. Step 6: Final answer
    x = 31,077,273.21

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