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Finding the Third Proportional to 52,858.50 and 81,811.50

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Solution

The third proportional to 52,858.50 and 81,811.50 is: 126,623.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,858.50 : 81,811.50 = 81,811.50 : x
  2. Step 2: Convert to fraction form
    52,858.50/81,811.50 = 81,811.50/x
  3. Step 3: Cross multiply
    52,858.50x = 81,811.50 × 81,811.50
  4. Step 4: Simplify right side
    52,858.50x = 6,693,121,532.25
  5. Step 5: Solve for x
    x = 6,693,121,532.25/52,858.50
  6. Step 6: Final answer
    x = 126,623.37

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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.