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Finding the Third Proportional to 7,611.79 and 18,145.27

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Solution

The third proportional to 7,611.79 and 18,145.27 is: 43,255.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.79 : 18,145.27 = 18,145.27 : x
  2. Step 2: Convert to fraction form
    7,611.79/18,145.27 = 18,145.27/x
  3. Step 3: Cross multiply
    7,611.79x = 18,145.27 × 18,145.27
  4. Step 4: Simplify right side
    7,611.79x = 329,250,664.60
  5. Step 5: Solve for x
    x = 329,250,664.60/7,611.79
  6. Step 6: Final answer
    x = 43,255.38

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.