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Finding the Fourth Proportional to 17,939.93, 26,892.44 and 8,577.51

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Solution

The fourth proportional to 17,939.93, 26,892.44 and 8,577.51 is: 12,857.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,939.93 : 26,892.44 = 8,577.51 : x
  2. Step 2: Convert to fraction form
    17,939.93/26,892.44 = 8,577.51/x
  3. Step 3: Cross multiply
    17,939.93x = 26,892.44 × 8,577.51
  4. Step 4: Simplify right side
    17,939.93x = 230,670,130.14
  5. Step 5: Solve for x
    x = 230,670,130.14/17,939.93
  6. Step 6: Final answer
    x = 12,857.92

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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.