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Finding the Third Proportional to 17,989.50 and 27,531

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Solution

The third proportional to 17,989.50 and 27,531 is: 42,133.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,989.50 : 27,531 = 27,531 : x
  2. Step 2: Convert to fraction form
    17,989.50/27,531 = 27,531/x
  3. Step 3: Cross multiply
    17,989.50x = 27,531 × 27,531
  4. Step 4: Simplify right side
    17,989.50x = 757,955,961
  5. Step 5: Solve for x
    x = 757,955,961/17,989.50
  6. Step 6: Final answer
    x = 42,133.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.