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Finding the Fourth Proportional to 5,232.92, 7,221.03 and 3,136.64

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Solution

The fourth proportional to 5,232.92, 7,221.03 and 3,136.64 is: 4,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,232.92 : 7,221.03 = 3,136.64 : x
  2. Step 2: Convert to fraction form
    5,232.92/7,221.03 = 3,136.64/x
  3. Step 3: Cross multiply
    5,232.92x = 7,221.03 × 3,136.64
  4. Step 4: Simplify right side
    5,232.92x = 22,649,771.54
  5. Step 5: Solve for x
    x = 22,649,771.54/5,232.92
  6. Step 6: Final answer
    x = 4,328.32

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.