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Finding the Fourth Proportional to 2,472.36, 3,708.36 and 1,238.52

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Solution

The fourth proportional to 2,472.36, 3,708.36 and 1,238.52 is: 1,857.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,472.36 : 3,708.36 = 1,238.52 : x
  2. Step 2: Convert to fraction form
    2,472.36/3,708.36 = 1,238.52/x
  3. Step 3: Cross multiply
    2,472.36x = 3,708.36 × 1,238.52
  4. Step 4: Simplify right side
    2,472.36x = 4,592,878.03
  5. Step 5: Solve for x
    x = 4,592,878.03/2,472.36
  6. Step 6: Final answer
    x = 1,857.69

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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.