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Finding the Third Proportional to 12,071.53 and 18,771.75

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Solution

The third proportional to 12,071.53 and 18,771.75 is: 29,190.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071.53 : 18,771.75 = 18,771.75 : x
  2. Step 2: Convert to fraction form
    12,071.53/18,771.75 = 18,771.75/x
  3. Step 3: Cross multiply
    12,071.53x = 18,771.75 × 18,771.75
  4. Step 4: Simplify right side
    12,071.53x = 352,378,598.06
  5. Step 5: Solve for x
    x = 352,378,598.06/12,071.53
  6. Step 6: Final answer
    x = 29,190.88

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.