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Finding the Third Proportional to 26,987.50 and 40,858

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Solution

The third proportional to 26,987.50 and 40,858 is: 61,857.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,987.50 : 40,858 = 40,858 : x
  2. Step 2: Convert to fraction form
    26,987.50/40,858 = 40,858/x
  3. Step 3: Cross multiply
    26,987.50x = 40,858 × 40,858
  4. Step 4: Simplify right side
    26,987.50x = 1,669,376,164
  5. Step 5: Solve for x
    x = 1,669,376,164/26,987.50
  6. Step 6: Final answer
    x = 61,857.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.