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Finding the Fourth Proportional to 11,980, 16,532.56 and 6,944.58

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Solution

The fourth proportional to 11,980, 16,532.56 and 6,944.58 is: 9,583.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,980 : 16,532.56 = 6,944.58 : x
  2. Step 2: Convert to fraction form
    11,980/16,532.56 = 6,944.58/x
  3. Step 3: Cross multiply
    11,980x = 16,532.56 × 6,944.58
  4. Step 4: Simplify right side
    11,980x = 114,811,685.52
  5. Step 5: Solve for x
    x = 114,811,685.52/11,980
  6. Step 6: Final answer
    x = 9,583.61

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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.