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Finding the Fourth Proportional to 11,758, 16,226.52 and 6,790

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Solution

The fourth proportional to 11,758, 16,226.52 and 6,790 is: 9,370.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,758 : 16,226.52 = 6,790 : x
  2. Step 2: Convert to fraction form
    11,758/16,226.52 = 6,790/x
  3. Step 3: Cross multiply
    11,758x = 16,226.52 × 6,790
  4. Step 4: Simplify right side
    11,758x = 110,178,070.80
  5. Step 5: Solve for x
    x = 110,178,070.80/11,758
  6. Step 6: Final answer
    x = 9,370.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.