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Finding the Third Proportional to 28,688 and 62,416

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Solution

The third proportional to 28,688 and 62,416 is: 135,797.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688 : 62,416 = 62,416 : x
  2. Step 2: Convert to fraction form
    28,688/62,416 = 62,416/x
  3. Step 3: Cross multiply
    28,688x = 62,416 × 62,416
  4. Step 4: Simplify right side
    28,688x = 3,895,757,056
  5. Step 5: Solve for x
    x = 3,895,757,056/28,688
  6. Step 6: Final answer
    x = 135,797.44

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.