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Finding the Fourth Proportional to 11,083.64, 16,629.71 and 7,924.64

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Solution

The fourth proportional to 11,083.64, 16,629.71 and 7,924.64 is: 11,889.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,083.64 : 16,629.71 = 7,924.64 : x
  2. Step 2: Convert to fraction form
    11,083.64/16,629.71 = 7,924.64/x
  3. Step 3: Cross multiply
    11,083.64x = 16,629.71 × 7,924.64
  4. Step 4: Simplify right side
    11,083.64x = 131,784,342.28
  5. Step 5: Solve for x
    x = 131,784,342.28/11,083.64
  6. Step 6: Final answer
    x = 11,889.99

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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.