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Finding the Third Proportional to 28,422 and 44,487

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Solution

The third proportional to 28,422 and 44,487 is: 69,632.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,422 : 44,487 = 44,487 : x
  2. Step 2: Convert to fraction form
    28,422/44,487 = 44,487/x
  3. Step 3: Cross multiply
    28,422x = 44,487 × 44,487
  4. Step 4: Simplify right side
    28,422x = 1,979,093,169
  5. Step 5: Solve for x
    x = 1,979,093,169/28,422
  6. Step 6: Final answer
    x = 69,632.44

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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.