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Finding the Third Proportional to 11,385 and 27,670.50

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Solution

The third proportional to 11,385 and 27,670.50 is: 67,251.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385 : 27,670.50 = 27,670.50 : x
  2. Step 2: Convert to fraction form
    11,385/27,670.50 = 27,670.50/x
  3. Step 3: Cross multiply
    11,385x = 27,670.50 × 27,670.50
  4. Step 4: Simplify right side
    11,385x = 765,656,570.25
  5. Step 5: Solve for x
    x = 765,656,570.25/11,385
  6. Step 6: Final answer
    x = 67,251.35

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.