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Finding the Third Proportional to 11,538 and 13,587.75

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Solution

The third proportional to 11,538 and 13,587.75 is: 16,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,538 : 13,587.75 = 13,587.75 : x
  2. Step 2: Convert to fraction form
    11,538/13,587.75 = 13,587.75/x
  3. Step 3: Cross multiply
    11,538x = 13,587.75 × 13,587.75
  4. Step 4: Simplify right side
    11,538x = 184,626,950.06
  5. Step 5: Solve for x
    x = 184,626,950.06/11,538
  6. Step 6: Final answer
    x = 16,001.64

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.