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Finding the Third Proportional to 11,742 and 25,320

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Solution

The third proportional to 11,742 and 25,320 is: 54,599.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,742 : 25,320 = 25,320 : x
  2. Step 2: Convert to fraction form
    11,742/25,320 = 25,320/x
  3. Step 3: Cross multiply
    11,742x = 25,320 × 25,320
  4. Step 4: Simplify right side
    11,742x = 641,102,400
  5. Step 5: Solve for x
    x = 641,102,400/11,742
  6. Step 6: Final answer
    x = 54,599.08

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.