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Finding the Fourth Proportional to 12,274.22, 18,377.03 and 6,631.68

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Solution

The fourth proportional to 12,274.22, 18,377.03 and 6,631.68 is: 9,928.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,274.22 : 18,377.03 = 6,631.68 : x
  2. Step 2: Convert to fraction form
    12,274.22/18,377.03 = 6,631.68/x
  3. Step 3: Cross multiply
    12,274.22x = 18,377.03 × 6,631.68
  4. Step 4: Simplify right side
    12,274.22x = 121,870,561.03
  5. Step 5: Solve for x
    x = 121,870,561.03/12,274.22
  6. Step 6: Final answer
    x = 9,928.98

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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.