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Finding the Third Proportional to 13,392 and 19,140

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Solution

The third proportional to 13,392 and 19,140 is: 27,355.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392 : 19,140 = 19,140 : x
  2. Step 2: Convert to fraction form
    13,392/19,140 = 19,140/x
  3. Step 3: Cross multiply
    13,392x = 19,140 × 19,140
  4. Step 4: Simplify right side
    13,392x = 366,339,600
  5. Step 5: Solve for x
    x = 366,339,600/13,392
  6. Step 6: Final answer
    x = 27,355.11

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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.