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Finding the Fourth Proportional to 2,481.80, 3,725.12 and 1,184.16

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Solution

The fourth proportional to 2,481.80, 3,725.12 and 1,184.16 is: 1,777.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.80 : 3,725.12 = 1,184.16 : x
  2. Step 2: Convert to fraction form
    2,481.80/3,725.12 = 1,184.16/x
  3. Step 3: Cross multiply
    2,481.80x = 3,725.12 × 1,184.16
  4. Step 4: Simplify right side
    2,481.80x = 4,411,138.10
  5. Step 5: Solve for x
    x = 4,411,138.10/2,481.80
  6. Step 6: Final answer
    x = 1,777.39

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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.