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Finding the Fourth Proportional to 6,650.60, 9,171.78 and 5,324.36

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Solution

The fourth proportional to 6,650.60, 9,171.78 and 5,324.36 is: 7,342.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,650.60 : 9,171.78 = 5,324.36 : x
  2. Step 2: Convert to fraction form
    6,650.60/9,171.78 = 5,324.36/x
  3. Step 3: Cross multiply
    6,650.60x = 9,171.78 × 5,324.36
  4. Step 4: Simplify right side
    6,650.60x = 48,833,858.56
  5. Step 5: Solve for x
    x = 48,833,858.56/6,650.60
  6. Step 6: Final answer
    x = 7,342.77

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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.