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Finding the Fourth Proportional to 6,609.56, 9,127.31 and 4,255.83

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Solution

The fourth proportional to 6,609.56, 9,127.31 and 4,255.83 is: 5,876.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.56 : 9,127.31 = 4,255.83 : x
  2. Step 2: Convert to fraction form
    6,609.56/9,127.31 = 4,255.83/x
  3. Step 3: Cross multiply
    6,609.56x = 9,127.31 × 4,255.83
  4. Step 4: Simplify right side
    6,609.56x = 38,844,258.44
  5. Step 5: Solve for x
    x = 38,844,258.44/6,609.56
  6. Step 6: Final answer
    x = 5,876.99

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Double scale
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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.