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Finding the Fourth Proportional to 9,416.94, 12,908.96 and 9,329.82

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Solution

The fourth proportional to 9,416.94, 12,908.96 and 9,329.82 is: 12,789.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,416.94 : 12,908.96 = 9,329.82 : x
  2. Step 2: Convert to fraction form
    9,416.94/12,908.96 = 9,329.82/x
  3. Step 3: Cross multiply
    9,416.94x = 12,908.96 × 9,329.82
  4. Step 4: Simplify right side
    9,416.94x = 120,438,226.54
  5. Step 5: Solve for x
    x = 120,438,226.54/9,416.94
  6. Step 6: Final answer
    x = 12,789.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.