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Finding the Third Proportional to 11,372 and 15,074

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Solution

The third proportional to 11,372 and 15,074 is: 19,981.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,372 : 15,074 = 15,074 : x
  2. Step 2: Convert to fraction form
    11,372/15,074 = 15,074/x
  3. Step 3: Cross multiply
    11,372x = 15,074 × 15,074
  4. Step 4: Simplify right side
    11,372x = 227,225,476
  5. Step 5: Solve for x
    x = 227,225,476/11,372
  6. Step 6: Final answer
    x = 19,981.14

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.