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Finding the Third Proportional to 7,191 and 13,464

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Solution

The third proportional to 7,191 and 13,464 is: 25,209.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191 : 13,464 = 13,464 : x
  2. Step 2: Convert to fraction form
    7,191/13,464 = 13,464/x
  3. Step 3: Cross multiply
    7,191x = 13,464 × 13,464
  4. Step 4: Simplify right side
    7,191x = 181,279,296
  5. Step 5: Solve for x
    x = 181,279,296/7,191
  6. Step 6: Final answer
    x = 25,209.19

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.