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Finding the Third Proportional to 55,213 and 87,568

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Solution

The third proportional to 55,213 and 87,568 is: 138,883.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,213 : 87,568 = 87,568 : x
  2. Step 2: Convert to fraction form
    55,213/87,568 = 87,568/x
  3. Step 3: Cross multiply
    55,213x = 87,568 × 87,568
  4. Step 4: Simplify right side
    55,213x = 7,668,154,624
  5. Step 5: Solve for x
    x = 7,668,154,624/55,213
  6. Step 6: Final answer
    x = 138,883.14

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These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.