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Finding the Fourth Proportional to 6,374.40, 8,791.68 and 4,694.88

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Solution

The fourth proportional to 6,374.40, 8,791.68 and 4,694.88 is: 6,475.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,374.40 : 8,791.68 = 4,694.88 : x
  2. Step 2: Convert to fraction form
    6,374.40/8,791.68 = 4,694.88/x
  3. Step 3: Cross multiply
    6,374.40x = 8,791.68 × 4,694.88
  4. Step 4: Simplify right side
    6,374.40x = 41,275,882.60
  5. Step 5: Solve for x
    x = 41,275,882.60/6,374.40
  6. Step 6: Final answer
    x = 6,475.26

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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.