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Finding the Fourth Proportional to 17,857.95, 26,788.09 and 5,377.47

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Solution

The fourth proportional to 17,857.95, 26,788.09 and 5,377.47 is: 8,066.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.95 : 26,788.09 = 5,377.47 : x
  2. Step 2: Convert to fraction form
    17,857.95/26,788.09 = 5,377.47/x
  3. Step 3: Cross multiply
    17,857.95x = 26,788.09 × 5,377.47
  4. Step 4: Simplify right side
    17,857.95x = 144,052,150.33
  5. Step 5: Solve for x
    x = 144,052,150.33/17,857.95
  6. Step 6: Final answer
    x = 8,066.56

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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.