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Finding the Fourth Proportional to 17,856.58, 26,781.22 and 6,759.45

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Solution

The fourth proportional to 17,856.58, 26,781.22 and 6,759.45 is: 10,137.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,856.58 : 26,781.22 = 6,759.45 : x
  2. Step 2: Convert to fraction form
    17,856.58/26,781.22 = 6,759.45/x
  3. Step 3: Cross multiply
    17,856.58x = 26,781.22 × 6,759.45
  4. Step 4: Simplify right side
    17,856.58x = 181,026,317.53
  5. Step 5: Solve for x
    x = 181,026,317.53/17,856.58
  6. Step 6: Final answer
    x = 10,137.79

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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.