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Finding the Third Proportional to 18,231 and 28,560

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Solution

The third proportional to 18,231 and 28,560 is: 44,741.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231 : 28,560 = 28,560 : x
  2. Step 2: Convert to fraction form
    18,231/28,560 = 28,560/x
  3. Step 3: Cross multiply
    18,231x = 28,560 × 28,560
  4. Step 4: Simplify right side
    18,231x = 815,673,600
  5. Step 5: Solve for x
    x = 815,673,600/18,231
  6. Step 6: Final answer
    x = 44,741.02

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.