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Finding the Fourth Proportional to 4,959.57, 7,439.15 and 1,672.65

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Solution

The fourth proportional to 4,959.57, 7,439.15 and 1,672.65 is: 2,508.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.57 : 7,439.15 = 1,672.65 : x
  2. Step 2: Convert to fraction form
    4,959.57/7,439.15 = 1,672.65/x
  3. Step 3: Cross multiply
    4,959.57x = 7,439.15 × 1,672.65
  4. Step 4: Simplify right side
    4,959.57x = 12,443,094.25
  5. Step 5: Solve for x
    x = 12,443,094.25/4,959.57
  6. Step 6: Final answer
    x = 2,508.91

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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.