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Finding the Fourth Proportional to 5,960.42, 8,940.81 and 2,840.76

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Solution

The fourth proportional to 5,960.42, 8,940.81 and 2,840.76 is: 4,261.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,960.42 : 8,940.81 = 2,840.76 : x
  2. Step 2: Convert to fraction form
    5,960.42/8,940.81 = 2,840.76/x
  3. Step 3: Cross multiply
    5,960.42x = 8,940.81 × 2,840.76
  4. Step 4: Simplify right side
    5,960.42x = 25,398,695.42
  5. Step 5: Solve for x
    x = 25,398,695.42/5,960.42
  6. Step 6: Final answer
    x = 4,261.23

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.