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Finding the Third Proportional to 7,347 and 11,965.50

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Solution

The third proportional to 7,347 and 11,965.50 is: 19,487.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347 : 11,965.50 = 11,965.50 : x
  2. Step 2: Convert to fraction form
    7,347/11,965.50 = 11,965.50/x
  3. Step 3: Cross multiply
    7,347x = 11,965.50 × 11,965.50
  4. Step 4: Simplify right side
    7,347x = 143,173,190.25
  5. Step 5: Solve for x
    x = 143,173,190.25/7,347
  6. Step 6: Final answer
    x = 19,487.30

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.