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Finding the Third Proportional to 63,891 and 99,212.75

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Solution

The third proportional to 63,891 and 99,212.75 is: 154,061.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,891 : 99,212.75 = 99,212.75 : x
  2. Step 2: Convert to fraction form
    63,891/99,212.75 = 99,212.75/x
  3. Step 3: Cross multiply
    63,891x = 99,212.75 × 99,212.75
  4. Step 4: Simplify right side
    63,891x = 9,843,169,762.56
  5. Step 5: Solve for x
    x = 9,843,169,762.56/63,891
  6. Step 6: Final answer
    x = 154,061.91

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.