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Finding the Fourth Proportional to 2,481.03, 3,721.95 and 749.25

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Solution

The fourth proportional to 2,481.03, 3,721.95 and 749.25 is: 1,124.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.03 : 3,721.95 = 749.25 : x
  2. Step 2: Convert to fraction form
    2,481.03/3,721.95 = 749.25/x
  3. Step 3: Cross multiply
    2,481.03x = 3,721.95 × 749.25
  4. Step 4: Simplify right side
    2,481.03x = 2,788,671.04
  5. Step 5: Solve for x
    x = 2,788,671.04/2,481.03
  6. Step 6: Final answer
    x = 1,124.00

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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.