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Finding the Fourth Proportional to 2,176.62, 3,264.96 and 533.20

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Solution

The fourth proportional to 2,176.62, 3,264.96 and 533.20 is: 799.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.62 : 3,264.96 = 533.20 : x
  2. Step 2: Convert to fraction form
    2,176.62/3,264.96 = 533.20/x
  3. Step 3: Cross multiply
    2,176.62x = 3,264.96 × 533.20
  4. Step 4: Simplify right side
    2,176.62x = 1,740,876.67
  5. Step 5: Solve for x
    x = 1,740,876.67/2,176.62
  6. Step 6: Final answer
    x = 799.81

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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.