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Finding the Third Proportional to 10,660 and 15,928

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Solution

The third proportional to 10,660 and 15,928 is: 23,799.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660 : 15,928 = 15,928 : x
  2. Step 2: Convert to fraction form
    10,660/15,928 = 15,928/x
  3. Step 3: Cross multiply
    10,660x = 15,928 × 15,928
  4. Step 4: Simplify right side
    10,660x = 253,701,184
  5. Step 5: Solve for x
    x = 253,701,184/10,660
  6. Step 6: Final answer
    x = 23,799.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.