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Finding the Third Proportional to 13,321.13 and 18,935.44

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Solution

The third proportional to 13,321.13 and 18,935.44 is: 26,915.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.13 : 18,935.44 = 18,935.44 : x
  2. Step 2: Convert to fraction form
    13,321.13/18,935.44 = 18,935.44/x
  3. Step 3: Cross multiply
    13,321.13x = 18,935.44 × 18,935.44
  4. Step 4: Simplify right side
    13,321.13x = 358,550,793.32
  5. Step 5: Solve for x
    x = 358,550,793.32/13,321.13
  6. Step 6: Final answer
    x = 26,915.95

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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.