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Finding the Third Proportional to 15,165.50 and 32,815

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Solution

The third proportional to 15,165.50 and 32,815 is: 71,004.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,165.50 : 32,815 = 32,815 : x
  2. Step 2: Convert to fraction form
    15,165.50/32,815 = 32,815/x
  3. Step 3: Cross multiply
    15,165.50x = 32,815 × 32,815
  4. Step 4: Simplify right side
    15,165.50x = 1,076,824,225
  5. Step 5: Solve for x
    x = 1,076,824,225/15,165.50
  6. Step 6: Final answer
    x = 71,004.86

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.