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Finding the Third Proportional to 12,015 and 16,071.75

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Solution

The third proportional to 12,015 and 16,071.75 is: 21,498.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015 : 16,071.75 = 16,071.75 : x
  2. Step 2: Convert to fraction form
    12,015/16,071.75 = 16,071.75/x
  3. Step 3: Cross multiply
    12,015x = 16,071.75 × 16,071.75
  4. Step 4: Simplify right side
    12,015x = 258,301,148.06
  5. Step 5: Solve for x
    x = 258,301,148.06/12,015
  6. Step 6: Final answer
    x = 21,498.22

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.