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Finding the Fourth Proportional to 18,473.49, 27,712.97 and 6,785.80

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Solution

The fourth proportional to 18,473.49, 27,712.97 and 6,785.80 is: 10,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,473.49 : 27,712.97 = 6,785.80 : x
  2. Step 2: Convert to fraction form
    18,473.49/27,712.97 = 6,785.80/x
  3. Step 3: Cross multiply
    18,473.49x = 27,712.97 × 6,785.80
  4. Step 4: Simplify right side
    18,473.49x = 188,054,594.06
  5. Step 5: Solve for x
    x = 188,054,594.06/18,473.49
  6. Step 6: Final answer
    x = 10,179.70

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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.