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Finding the Fourth Proportional to 26,887, 37,104.06 and 15,111

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Solution

The fourth proportional to 26,887, 37,104.06 and 15,111 is: 20,853.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,887 : 37,104.06 = 15,111 : x
  2. Step 2: Convert to fraction form
    26,887/37,104.06 = 15,111/x
  3. Step 3: Cross multiply
    26,887x = 37,104.06 × 15,111
  4. Step 4: Simplify right side
    26,887x = 560,679,450.66
  5. Step 5: Solve for x
    x = 560,679,450.66/26,887
  6. Step 6: Final answer
    x = 20,853.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.