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Finding the Fourth Proportional to 12,340.80, 18,502.99 and 6,796.75

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Solution

The fourth proportional to 12,340.80, 18,502.99 and 6,796.75 is: 10,190.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.80 : 18,502.99 = 6,796.75 : x
  2. Step 2: Convert to fraction form
    12,340.80/18,502.99 = 6,796.75/x
  3. Step 3: Cross multiply
    12,340.80x = 18,502.99 × 6,796.75
  4. Step 4: Simplify right side
    12,340.80x = 125,760,197.28
  5. Step 5: Solve for x
    x = 125,760,197.28/12,340.80
  6. Step 6: Final answer
    x = 10,190.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.