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Finding the Third Proportional to 30,302,986 and 65,103,380

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Solution

The third proportional to 30,302,986 and 65,103,380 is: 139,869,057.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,302,986 : 65,103,380 = 65,103,380 : x
  2. Step 2: Convert to fraction form
    30,302,986/65,103,380 = 65,103,380/x
  3. Step 3: Cross multiply
    30,302,986x = 65,103,380 × 65,103,380
  4. Step 4: Simplify right side
    30,302,986x = 4,238,450,087,424,400
  5. Step 5: Solve for x
    x = 4,238,450,087,424,400/30,302,986
  6. Step 6: Final answer
    x = 139,869,057.37

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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.