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Finding the Third Proportional to 40,015.50 and 86,817

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Solution

The third proportional to 40,015.50 and 86,817 is: 188,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,015.50 : 86,817 = 86,817 : x
  2. Step 2: Convert to fraction form
    40,015.50/86,817 = 86,817/x
  3. Step 3: Cross multiply
    40,015.50x = 86,817 × 86,817
  4. Step 4: Simplify right side
    40,015.50x = 7,537,191,489
  5. Step 5: Solve for x
    x = 7,537,191,489/40,015.50
  6. Step 6: Final answer
    x = 188,356.80

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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.