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Finding the Third Proportional to 14,977 and 21,336

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Solution

The third proportional to 14,977 and 21,336 is: 30,394.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,977 : 21,336 = 21,336 : x
  2. Step 2: Convert to fraction form
    14,977/21,336 = 21,336/x
  3. Step 3: Cross multiply
    14,977x = 21,336 × 21,336
  4. Step 4: Simplify right side
    14,977x = 455,224,896
  5. Step 5: Solve for x
    x = 455,224,896/14,977
  6. Step 6: Final answer
    x = 30,394.93

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.