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Finding the Third Proportional to 28,357 and 62,140

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Solution

The third proportional to 28,357 and 62,140 is: 136,170.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357 : 62,140 = 62,140 : x
  2. Step 2: Convert to fraction form
    28,357/62,140 = 62,140/x
  3. Step 3: Cross multiply
    28,357x = 62,140 × 62,140
  4. Step 4: Simplify right side
    28,357x = 3,861,379,600
  5. Step 5: Solve for x
    x = 3,861,379,600/28,357
  6. Step 6: Final answer
    x = 136,170.24

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.