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Finding the Third Proportional to 40,235 and 87,191

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Solution

The third proportional to 40,235 and 87,191 is: 188,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,235 : 87,191 = 87,191 : x
  2. Step 2: Convert to fraction form
    40,235/87,191 = 87,191/x
  3. Step 3: Cross multiply
    40,235x = 87,191 × 87,191
  4. Step 4: Simplify right side
    40,235x = 7,602,270,481
  5. Step 5: Solve for x
    x = 7,602,270,481/40,235
  6. Step 6: Final answer
    x = 188,946.70

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.