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Finding the Third Proportional to 18,906.75 and 27,607.50

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Solution

The third proportional to 18,906.75 and 27,607.50 is: 40,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,906.75 : 27,607.50 = 27,607.50 : x
  2. Step 2: Convert to fraction form
    18,906.75/27,607.50 = 27,607.50/x
  3. Step 3: Cross multiply
    18,906.75x = 27,607.50 × 27,607.50
  4. Step 4: Simplify right side
    18,906.75x = 762,174,056.25
  5. Step 5: Solve for x
    x = 762,174,056.25/18,906.75
  6. Step 6: Final answer
    x = 40,312.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.