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Finding the Fourth Proportional to 6,789.92, 9,369.96 and 4,427.60

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Solution

The fourth proportional to 6,789.92, 9,369.96 and 4,427.60 is: 6,110.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,789.92 : 9,369.96 = 4,427.60 : x
  2. Step 2: Convert to fraction form
    6,789.92/9,369.96 = 4,427.60/x
  3. Step 3: Cross multiply
    6,789.92x = 9,369.96 × 4,427.60
  4. Step 4: Simplify right side
    6,789.92x = 41,486,434.90
  5. Step 5: Solve for x
    x = 41,486,434.90/6,789.92
  6. Step 6: Final answer
    x = 6,110.00

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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.