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Finding the Third Proportional to 18,312 and 25,932

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Solution

The third proportional to 18,312 and 25,932 is: 36,722.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312 : 25,932 = 25,932 : x
  2. Step 2: Convert to fraction form
    18,312/25,932 = 25,932/x
  3. Step 3: Cross multiply
    18,312x = 25,932 × 25,932
  4. Step 4: Simplify right side
    18,312x = 672,468,624
  5. Step 5: Solve for x
    x = 672,468,624/18,312
  6. Step 6: Final answer
    x = 36,722.84

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.