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Finding the Third Proportional to 18,491.63 and 40,480.88

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Solution

The third proportional to 18,491.63 and 40,480.88 is: 88,618.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.63 : 40,480.88 = 40,480.88 : x
  2. Step 2: Convert to fraction form
    18,491.63/40,480.88 = 40,480.88/x
  3. Step 3: Cross multiply
    18,491.63x = 40,480.88 × 40,480.88
  4. Step 4: Simplify right side
    18,491.63x = 1,638,701,240.77
  5. Step 5: Solve for x
    x = 1,638,701,240.77/18,491.63
  6. Step 6: Final answer
    x = 88,618.56

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.