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Finding the Fourth Proportional to 12,304.92, 16,980.64 and 6,999.73

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Solution

The fourth proportional to 12,304.92, 16,980.64 and 6,999.73 is: 9,659.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,304.92 : 16,980.64 = 6,999.73 : x
  2. Step 2: Convert to fraction form
    12,304.92/16,980.64 = 6,999.73/x
  3. Step 3: Cross multiply
    12,304.92x = 16,980.64 × 6,999.73
  4. Step 4: Simplify right side
    12,304.92x = 118,859,874.65
  5. Step 5: Solve for x
    x = 118,859,874.65/12,304.92
  6. Step 6: Final answer
    x = 9,659.54

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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.