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Finding the Fourth Proportional to 3,862.65, 5,794.98 and 1,672.92

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Solution

The fourth proportional to 3,862.65, 5,794.98 and 1,672.92 is: 2,509.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.65 : 5,794.98 = 1,672.92 : x
  2. Step 2: Convert to fraction form
    3,862.65/5,794.98 = 1,672.92/x
  3. Step 3: Cross multiply
    3,862.65x = 5,794.98 × 1,672.92
  4. Step 4: Simplify right side
    3,862.65x = 9,694,537.94
  5. Step 5: Solve for x
    x = 9,694,537.94/3,862.65
  6. Step 6: Final answer
    x = 2,509.82

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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.