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Finding the Fourth Proportional to 4,591.52, 6,891.04 and 1,672

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Solution

The fourth proportional to 4,591.52, 6,891.04 and 1,672 is: 2,509.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,591.52 : 6,891.04 = 1,672 : x
  2. Step 2: Convert to fraction form
    4,591.52/6,891.04 = 1,672/x
  3. Step 3: Cross multiply
    4,591.52x = 6,891.04 × 1,672
  4. Step 4: Simplify right side
    4,591.52x = 11,521,818.88
  5. Step 5: Solve for x
    x = 11,521,818.88/4,591.52
  6. Step 6: Final answer
    x = 2,509.37

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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.