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Finding the Third Proportional to 4,189.50 and 11,397.75

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Solution

The third proportional to 4,189.50 and 11,397.75 is: 31,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.50 : 11,397.75 = 11,397.75 : x
  2. Step 2: Convert to fraction form
    4,189.50/11,397.75 = 11,397.75/x
  3. Step 3: Cross multiply
    4,189.50x = 11,397.75 × 11,397.75
  4. Step 4: Simplify right side
    4,189.50x = 129,908,705.06
  5. Step 5: Solve for x
    x = 129,908,705.06/4,189.50
  6. Step 6: Final answer
    x = 31,008.16

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Why These Related Problems?

These problems maintain the same ratio (2.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.