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Finding the Fourth Proportional to 17,491.70, 26,248.22 and 6,959.81

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Solution

The fourth proportional to 17,491.70, 26,248.22 and 6,959.81 is: 10,443.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,491.70 : 26,248.22 = 6,959.81 : x
  2. Step 2: Convert to fraction form
    17,491.70/26,248.22 = 6,959.81/x
  3. Step 3: Cross multiply
    17,491.70x = 26,248.22 × 6,959.81
  4. Step 4: Simplify right side
    17,491.70x = 182,682,624.04
  5. Step 5: Solve for x
    x = 182,682,624.04/17,491.70
  6. Step 6: Final answer
    x = 10,443.96

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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.