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Finding the Fourth Proportional to 4,959.82, 7,439.76 and 1,672.94

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Solution

The fourth proportional to 4,959.82, 7,439.76 and 1,672.94 is: 2,509.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.82 : 7,439.76 = 1,672.94 : x
  2. Step 2: Convert to fraction form
    4,959.82/7,439.76 = 1,672.94/x
  3. Step 3: Cross multiply
    4,959.82x = 7,439.76 × 1,672.94
  4. Step 4: Simplify right side
    4,959.82x = 12,446,272.09
  5. Step 5: Solve for x
    x = 12,446,272.09/4,959.82
  6. Step 6: Final answer
    x = 2,509.42

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1.5x scale

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.