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Finding the Third Proportional to 11,987.16 and 26,354.53

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Solution

The third proportional to 11,987.16 and 26,354.53 is: 57,942.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.16 : 26,354.53 = 26,354.53 : x
  2. Step 2: Convert to fraction form
    11,987.16/26,354.53 = 26,354.53/x
  3. Step 3: Cross multiply
    11,987.16x = 26,354.53 × 26,354.53
  4. Step 4: Simplify right side
    11,987.16x = 694,561,317.41
  5. Step 5: Solve for x
    x = 694,561,317.41/11,987.16
  6. Step 6: Final answer
    x = 57,942.13

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.