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Finding the Fourth Proportional to 12,313.23, 16,992.24 and 6,724.23

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Solution

The fourth proportional to 12,313.23, 16,992.24 and 6,724.23 is: 9,279.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.23 : 16,992.24 = 6,724.23 : x
  2. Step 2: Convert to fraction form
    12,313.23/16,992.24 = 6,724.23/x
  3. Step 3: Cross multiply
    12,313.23x = 16,992.24 × 6,724.23
  4. Step 4: Simplify right side
    12,313.23x = 114,259,729.98
  5. Step 5: Solve for x
    x = 114,259,729.98/12,313.23
  6. Step 6: Final answer
    x = 9,279.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.