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Finding the Third Proportional to 14,622 and 31,413

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Solution

The third proportional to 14,622 and 31,413 is: 67,485.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,622 : 31,413 = 31,413 : x
  2. Step 2: Convert to fraction form
    14,622/31,413 = 31,413/x
  3. Step 3: Cross multiply
    14,622x = 31,413 × 31,413
  4. Step 4: Simplify right side
    14,622x = 986,776,569
  5. Step 5: Solve for x
    x = 986,776,569/14,622
  6. Step 6: Final answer
    x = 67,485.75

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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.