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Finding the Fourth Proportional to 2,363.95, 3,546.30 and 720.12

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Solution

The fourth proportional to 2,363.95, 3,546.30 and 720.12 is: 1,080.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,363.95 : 3,546.30 = 720.12 : x
  2. Step 2: Convert to fraction form
    2,363.95/3,546.30 = 720.12/x
  3. Step 3: Cross multiply
    2,363.95x = 3,546.30 × 720.12
  4. Step 4: Simplify right side
    2,363.95x = 2,553,761.56
  5. Step 5: Solve for x
    x = 2,553,761.56/2,363.95
  6. Step 6: Final answer
    x = 1,080.29

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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.