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Finding the Fourth Proportional to 17,918.51, 26,874.11 and 10,028.90

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Solution

The fourth proportional to 17,918.51, 26,874.11 and 10,028.90 is: 15,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,918.51 : 26,874.11 = 10,028.90 : x
  2. Step 2: Convert to fraction form
    17,918.51/26,874.11 = 10,028.90/x
  3. Step 3: Cross multiply
    17,918.51x = 26,874.11 × 10,028.90
  4. Step 4: Simplify right side
    17,918.51x = 269,517,577.26
  5. Step 5: Solve for x
    x = 269,517,577.26/17,918.51
  6. Step 6: Final answer
    x = 15,041.30

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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.