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Finding the Third Proportional to 40,521 and 87,243.75

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Solution

The third proportional to 40,521 and 87,243.75 is: 187,840.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,521 : 87,243.75 = 87,243.75 : x
  2. Step 2: Convert to fraction form
    40,521/87,243.75 = 87,243.75/x
  3. Step 3: Cross multiply
    40,521x = 87,243.75 × 87,243.75
  4. Step 4: Simplify right side
    40,521x = 7,611,471,914.06
  5. Step 5: Solve for x
    x = 7,611,471,914.06/40,521
  6. Step 6: Final answer
    x = 187,840.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.