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Finding the Fourth Proportional to 18,313.80, 27,470.67 and 4,462.80

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Solution

The fourth proportional to 18,313.80, 27,470.67 and 4,462.80 is: 6,694.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.80 : 27,470.67 = 4,462.80 : x
  2. Step 2: Convert to fraction form
    18,313.80/27,470.67 = 4,462.80/x
  3. Step 3: Cross multiply
    18,313.80x = 27,470.67 × 4,462.80
  4. Step 4: Simplify right side
    18,313.80x = 122,596,106.08
  5. Step 5: Solve for x
    x = 122,596,106.08/18,313.80
  6. Step 6: Final answer
    x = 6,694.19

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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.