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Finding the Fourth Proportional to 8,309.44, 11,464.15 and 5,326.92

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Solution

The fourth proportional to 8,309.44, 11,464.15 and 5,326.92 is: 7,349.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309.44 : 11,464.15 = 5,326.92 : x
  2. Step 2: Convert to fraction form
    8,309.44/11,464.15 = 5,326.92/x
  3. Step 3: Cross multiply
    8,309.44x = 11,464.15 × 5,326.92
  4. Step 4: Simplify right side
    8,309.44x = 61,068,609.92
  5. Step 5: Solve for x
    x = 61,068,609.92/8,309.44
  6. Step 6: Final answer
    x = 7,349.31

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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.