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Finding the Fourth Proportional to 12,149.73, 16,766.70 and 6,844.65

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Solution

The fourth proportional to 12,149.73, 16,766.70 and 6,844.65 is: 9,445.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.73 : 16,766.70 = 6,844.65 : x
  2. Step 2: Convert to fraction form
    12,149.73/16,766.70 = 6,844.65/x
  3. Step 3: Cross multiply
    12,149.73x = 16,766.70 × 6,844.65
  4. Step 4: Simplify right side
    12,149.73x = 114,762,193.16
  5. Step 5: Solve for x
    x = 114,762,193.16/12,149.73
  6. Step 6: Final answer
    x = 9,445.66

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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.