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Finding the Fourth Proportional to 4,920.99, 6,791.01 and 2,682.88

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Solution

The fourth proportional to 4,920.99, 6,791.01 and 2,682.88 is: 3,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.99 : 6,791.01 = 2,682.88 : x
  2. Step 2: Convert to fraction form
    4,920.99/6,791.01 = 2,682.88/x
  3. Step 3: Cross multiply
    4,920.99x = 6,791.01 × 2,682.88
  4. Step 4: Simplify right side
    4,920.99x = 18,219,486.97
  5. Step 5: Solve for x
    x = 18,219,486.97/4,920.99
  6. Step 6: Final answer
    x = 3,702.40

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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.