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Finding the Fourth Proportional to 17,837.11, 26,755.94 and 8,478.10

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Solution

The fourth proportional to 17,837.11, 26,755.94 and 8,478.10 is: 12,717.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,837.11 : 26,755.94 = 8,478.10 : x
  2. Step 2: Convert to fraction form
    17,837.11/26,755.94 = 8,478.10/x
  3. Step 3: Cross multiply
    17,837.11x = 26,755.94 × 8,478.10
  4. Step 4: Simplify right side
    17,837.11x = 226,839,391.36
  5. Step 5: Solve for x
    x = 226,839,391.36/17,837.11
  6. Step 6: Final answer
    x = 12,717.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.