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Finding the Third Proportional to 11,161.13 and 15,158.25

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Solution

The third proportional to 11,161.13 and 15,158.25 is: 20,586.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.13 : 15,158.25 = 15,158.25 : x
  2. Step 2: Convert to fraction form
    11,161.13/15,158.25 = 15,158.25/x
  3. Step 3: Cross multiply
    11,161.13x = 15,158.25 × 15,158.25
  4. Step 4: Simplify right side
    11,161.13x = 229,772,543.06
  5. Step 5: Solve for x
    x = 229,772,543.06/11,161.13
  6. Step 6: Final answer
    x = 20,586.86

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.