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Finding the Third Proportional to 12,453.75 and 16,291.13

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Solution

The third proportional to 12,453.75 and 16,291.13 is: 21,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453.75 : 16,291.13 = 16,291.13 : x
  2. Step 2: Convert to fraction form
    12,453.75/16,291.13 = 16,291.13/x
  3. Step 3: Cross multiply
    12,453.75x = 16,291.13 × 16,291.13
  4. Step 4: Simplify right side
    12,453.75x = 265,400,753.77
  5. Step 5: Solve for x
    x = 265,400,753.77/12,453.75
  6. Step 6: Final answer
    x = 21,310.91

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.