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Finding the Fourth Proportional to 8,364.12, 12,473.09 and 7,328.94

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Solution

The fourth proportional to 8,364.12, 12,473.09 and 7,328.94 is: 10,929.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.12 : 12,473.09 = 7,328.94 : x
  2. Step 2: Convert to fraction form
    8,364.12/12,473.09 = 7,328.94/x
  3. Step 3: Cross multiply
    8,364.12x = 12,473.09 × 7,328.94
  4. Step 4: Simplify right side
    8,364.12x = 91,414,528.22
  5. Step 5: Solve for x
    x = 91,414,528.22/8,364.12
  6. Step 6: Final answer
    x = 10,929.37

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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.