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Finding the Third Proportional to 8,724 and 11,202.75

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Solution

The third proportional to 8,724 and 11,202.75 is: 14,385.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724 : 11,202.75 = 11,202.75 : x
  2. Step 2: Convert to fraction form
    8,724/11,202.75 = 11,202.75/x
  3. Step 3: Cross multiply
    8,724x = 11,202.75 × 11,202.75
  4. Step 4: Simplify right side
    8,724x = 125,501,607.56
  5. Step 5: Solve for x
    x = 125,501,607.56/8,724
  6. Step 6: Final answer
    x = 14,385.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.