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Finding the Third Proportional to 18,240.19 and 27,491.91

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Solution

The third proportional to 18,240.19 and 27,491.91 is: 41,436.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.19 : 27,491.91 = 27,491.91 : x
  2. Step 2: Convert to fraction form
    18,240.19/27,491.91 = 27,491.91/x
  3. Step 3: Cross multiply
    18,240.19x = 27,491.91 × 27,491.91
  4. Step 4: Simplify right side
    18,240.19x = 755,804,909.26
  5. Step 5: Solve for x
    x = 755,804,909.26/18,240.19
  6. Step 6: Final answer
    x = 41,436.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.