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Finding the Fourth Proportional to 7,862.31, 11,794.69 and 2,932.65

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Solution

The fourth proportional to 7,862.31, 11,794.69 and 2,932.65 is: 4,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,862.31 : 11,794.69 = 2,932.65 : x
  2. Step 2: Convert to fraction form
    7,862.31/11,794.69 = 2,932.65/x
  3. Step 3: Cross multiply
    7,862.31x = 11,794.69 × 2,932.65
  4. Step 4: Simplify right side
    7,862.31x = 34,589,712.45
  5. Step 5: Solve for x
    x = 34,589,712.45/7,862.31
  6. Step 6: Final answer
    x = 4,399.43

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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.