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Finding the Fourth Proportional to 11,991.44, 16,552.96 and 8,011.10

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Solution

The fourth proportional to 11,991.44, 16,552.96 and 8,011.10 is: 11,058.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991.44 : 16,552.96 = 8,011.10 : x
  2. Step 2: Convert to fraction form
    11,991.44/16,552.96 = 8,011.10/x
  3. Step 3: Cross multiply
    11,991.44x = 16,552.96 × 8,011.10
  4. Step 4: Simplify right side
    11,991.44x = 132,607,439.21
  5. Step 5: Solve for x
    x = 132,607,439.21/11,991.44
  6. Step 6: Final answer
    x = 11,058.51

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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.