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Finding the Fourth Proportional to 12,340.94, 18,503.18 and 6,796.88

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Solution

The fourth proportional to 12,340.94, 18,503.18 and 6,796.88 is: 10,190.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.94 : 18,503.18 = 6,796.88 : x
  2. Step 2: Convert to fraction form
    12,340.94/18,503.18 = 6,796.88/x
  3. Step 3: Cross multiply
    12,340.94x = 18,503.18 × 6,796.88
  4. Step 4: Simplify right side
    12,340.94x = 125,763,894.08
  5. Step 5: Solve for x
    x = 125,763,894.08/12,340.94
  6. Step 6: Final answer
    x = 10,190.79

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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.