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Finding the Third Proportional to 61,921 and 93,019

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Solution

The third proportional to 61,921 and 93,019 is: 139,735.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,921 : 93,019 = 93,019 : x
  2. Step 2: Convert to fraction form
    61,921/93,019 = 93,019/x
  3. Step 3: Cross multiply
    61,921x = 93,019 × 93,019
  4. Step 4: Simplify right side
    61,921x = 8,652,534,361
  5. Step 5: Solve for x
    x = 8,652,534,361/61,921
  6. Step 6: Final answer
    x = 139,735.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.