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Finding the Fourth Proportional to 12,174.88, 16,801.34 and 6,723.96

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Solution

The fourth proportional to 12,174.88, 16,801.34 and 6,723.96 is: 9,279.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174.88 : 16,801.34 = 6,723.96 : x
  2. Step 2: Convert to fraction form
    12,174.88/16,801.34 = 6,723.96/x
  3. Step 3: Cross multiply
    12,174.88x = 16,801.34 × 6,723.96
  4. Step 4: Simplify right side
    12,174.88x = 112,971,554.92
  5. Step 5: Solve for x
    x = 112,971,554.92/12,174.88
  6. Step 6: Final answer
    x = 9,279.07

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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.