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Finding the Fourth Proportional to 11,437.92, 17,154.48 and 3,228

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Solution

The fourth proportional to 11,437.92, 17,154.48 and 3,228 is: 4,841.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,437.92 : 17,154.48 = 3,228 : x
  2. Step 2: Convert to fraction form
    11,437.92/17,154.48 = 3,228/x
  3. Step 3: Cross multiply
    11,437.92x = 17,154.48 × 3,228
  4. Step 4: Simplify right side
    11,437.92x = 55,374,661.44
  5. Step 5: Solve for x
    x = 55,374,661.44/11,437.92
  6. Step 6: Final answer
    x = 4,841.32

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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.