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Finding the Third Proportional to 14,887 and 20,413

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Solution

The third proportional to 14,887 and 20,413 is: 27,990.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,887 : 20,413 = 20,413 : x
  2. Step 2: Convert to fraction form
    14,887/20,413 = 20,413/x
  3. Step 3: Cross multiply
    14,887x = 20,413 × 20,413
  4. Step 4: Simplify right side
    14,887x = 416,690,569
  5. Step 5: Solve for x
    x = 416,690,569/14,887
  6. Step 6: Final answer
    x = 27,990.23

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.