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Finding the Fourth Proportional to 18,874, 26,046.72 and 10,491.04

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Solution

The fourth proportional to 18,874, 26,046.72 and 10,491.04 is: 14,477.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,874 : 26,046.72 = 10,491.04 : x
  2. Step 2: Convert to fraction form
    18,874/26,046.72 = 10,491.04/x
  3. Step 3: Cross multiply
    18,874x = 26,046.72 × 10,491.04
  4. Step 4: Simplify right side
    18,874x = 273,257,181.39
  5. Step 5: Solve for x
    x = 273,257,181.39/18,874
  6. Step 6: Final answer
    x = 14,477.97

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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.