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Finding the Third Proportional to 27,972.75 and 43,215.75

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Solution

The third proportional to 27,972.75 and 43,215.75 is: 66,765.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,972.75 : 43,215.75 = 43,215.75 : x
  2. Step 2: Convert to fraction form
    27,972.75/43,215.75 = 43,215.75/x
  3. Step 3: Cross multiply
    27,972.75x = 43,215.75 × 43,215.75
  4. Step 4: Simplify right side
    27,972.75x = 1,867,601,048.06
  5. Step 5: Solve for x
    x = 1,867,601,048.06/27,972.75
  6. Step 6: Final answer
    x = 66,765.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.