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Finding the Fourth Proportional to 9,405.92, 14,093.39 and 7,320.68

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Solution

The fourth proportional to 9,405.92, 14,093.39 and 7,320.68 is: 10,968.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,405.92 : 14,093.39 = 7,320.68 : x
  2. Step 2: Convert to fraction form
    9,405.92/14,093.39 = 7,320.68/x
  3. Step 3: Cross multiply
    9,405.92x = 14,093.39 × 7,320.68
  4. Step 4: Simplify right side
    9,405.92x = 103,173,198.99
  5. Step 5: Solve for x
    x = 103,173,198.99/9,405.92
  6. Step 6: Final answer
    x = 10,968.96

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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.