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Finding the Third Proportional to 7,191 and 11,497.50

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Solution

The third proportional to 7,191 and 11,497.50 is: 18,383.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191 : 11,497.50 = 11,497.50 : x
  2. Step 2: Convert to fraction form
    7,191/11,497.50 = 11,497.50/x
  3. Step 3: Cross multiply
    7,191x = 11,497.50 × 11,497.50
  4. Step 4: Simplify right side
    7,191x = 132,192,506.25
  5. Step 5: Solve for x
    x = 132,192,506.25/7,191
  6. Step 6: Final answer
    x = 18,383.05

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.