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Finding the Fourth Proportional to 18,794.13, 28,192.41 and 6,313.65

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Solution

The fourth proportional to 18,794.13, 28,192.41 and 6,313.65 is: 9,470.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.13 : 28,192.41 = 6,313.65 : x
  2. Step 2: Convert to fraction form
    18,794.13/28,192.41 = 6,313.65/x
  3. Step 3: Cross multiply
    18,794.13x = 28,192.41 × 6,313.65
  4. Step 4: Simplify right side
    18,794.13x = 177,997,009.40
  5. Step 5: Solve for x
    x = 177,997,009.40/18,794.13
  6. Step 6: Final answer
    x = 9,470.88

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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.