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Finding the Third Proportional to 10,428.75 and 17,236.13

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Solution

The third proportional to 10,428.75 and 17,236.13 is: 28,487.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.75 : 17,236.13 = 17,236.13 : x
  2. Step 2: Convert to fraction form
    10,428.75/17,236.13 = 17,236.13/x
  3. Step 3: Cross multiply
    10,428.75x = 17,236.13 × 17,236.13
  4. Step 4: Simplify right side
    10,428.75x = 297,084,005.02
  5. Step 5: Solve for x
    x = 297,084,005.02/10,428.75
  6. Step 6: Final answer
    x = 28,487.02

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.