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Finding the Third Proportional to 9,285 and 13,267.50

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Solution

The third proportional to 9,285 and 13,267.50 is: 18,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285 : 13,267.50 = 13,267.50 : x
  2. Step 2: Convert to fraction form
    9,285/13,267.50 = 13,267.50/x
  3. Step 3: Cross multiply
    9,285x = 13,267.50 × 13,267.50
  4. Step 4: Simplify right side
    9,285x = 176,026,556.25
  5. Step 5: Solve for x
    x = 176,026,556.25/9,285
  6. Step 6: Final answer
    x = 18,958.16

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.