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Finding the Fourth Proportional to 9,329.92, 13,926.62 and 8,222.79

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Solution

The fourth proportional to 9,329.92, 13,926.62 and 8,222.79 is: 12,274.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.92 : 13,926.62 = 8,222.79 : x
  2. Step 2: Convert to fraction form
    9,329.92/13,926.62 = 8,222.79/x
  3. Step 3: Cross multiply
    9,329.92x = 13,926.62 × 8,222.79
  4. Step 4: Simplify right side
    9,329.92x = 114,515,671.67
  5. Step 5: Solve for x
    x = 114,515,671.67/9,329.92
  6. Step 6: Final answer
    x = 12,274.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.