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Finding the Fourth Proportional to 4,920.32, 6,791.15 and 2,932.43

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Solution

The fourth proportional to 4,920.32, 6,791.15 and 2,932.43 is: 4,047.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.32 : 6,791.15 = 2,932.43 : x
  2. Step 2: Convert to fraction form
    4,920.32/6,791.15 = 2,932.43/x
  3. Step 3: Cross multiply
    4,920.32x = 6,791.15 × 2,932.43
  4. Step 4: Simplify right side
    4,920.32x = 19,914,545.37
  5. Step 5: Solve for x
    x = 19,914,545.37/4,920.32
  6. Step 6: Final answer
    x = 4,047.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.