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Finding the Third Proportional to 62,650 and 90,600

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Solution

The third proportional to 62,650 and 90,600 is: 131,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,650 : 90,600 = 90,600 : x
  2. Step 2: Convert to fraction form
    62,650/90,600 = 90,600/x
  3. Step 3: Cross multiply
    62,650x = 90,600 × 90,600
  4. Step 4: Simplify right side
    62,650x = 8,208,360,000
  5. Step 5: Solve for x
    x = 8,208,360,000/62,650
  6. Step 6: Final answer
    x = 131,019.31

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.