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Finding the Third Proportional to 14,927.44 and 21,221.91

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Solution

The third proportional to 14,927.44 and 21,221.91 is: 30,170.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,927.44 : 21,221.91 = 21,221.91 : x
  2. Step 2: Convert to fraction form
    14,927.44/21,221.91 = 21,221.91/x
  3. Step 3: Cross multiply
    14,927.44x = 21,221.91 × 21,221.91
  4. Step 4: Simplify right side
    14,927.44x = 450,369,304.88
  5. Step 5: Solve for x
    x = 450,369,304.88/14,927.44
  6. Step 6: Final answer
    x = 30,170.57

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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.