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Finding the Fourth Proportional to 11,393.60, 17,079.08 and 5,459.54

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Solution

The fourth proportional to 11,393.60, 17,079.08 and 5,459.54 is: 8,183.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,393.60 : 17,079.08 = 5,459.54 : x
  2. Step 2: Convert to fraction form
    11,393.60/17,079.08 = 5,459.54/x
  3. Step 3: Cross multiply
    11,393.60x = 17,079.08 × 5,459.54
  4. Step 4: Simplify right side
    11,393.60x = 93,243,807.73
  5. Step 5: Solve for x
    x = 93,243,807.73/11,393.60
  6. Step 6: Final answer
    x = 8,183.88

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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.