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Finding the Fourth Proportional to 4,920.72, 6,791.58 and 2,932.44

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Solution

The fourth proportional to 4,920.72, 6,791.58 and 2,932.44 is: 4,047.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.72 : 6,791.58 = 2,932.44 : x
  2. Step 2: Convert to fraction form
    4,920.72/6,791.58 = 2,932.44/x
  3. Step 3: Cross multiply
    4,920.72x = 6,791.58 × 2,932.44
  4. Step 4: Simplify right side
    4,920.72x = 19,915,900.86
  5. Step 5: Solve for x
    x = 19,915,900.86/4,920.72
  6. Step 6: Final answer
    x = 4,047.36

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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.