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Finding the Third Proportional to 13,112 and 19,435

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Solution

The third proportional to 13,112 and 19,435 is: 28,807.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112 : 19,435 = 19,435 : x
  2. Step 2: Convert to fraction form
    13,112/19,435 = 19,435/x
  3. Step 3: Cross multiply
    13,112x = 19,435 × 19,435
  4. Step 4: Simplify right side
    13,112x = 377,719,225
  5. Step 5: Solve for x
    x = 377,719,225/13,112
  6. Step 6: Final answer
    x = 28,807.14

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.