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Finding the Fourth Proportional to 18,487.14, 27,726.63 and 5,336.65

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Solution

The fourth proportional to 18,487.14, 27,726.63 and 5,336.65 is: 8,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.14 : 27,726.63 = 5,336.65 : x
  2. Step 2: Convert to fraction form
    18,487.14/27,726.63 = 5,336.65/x
  3. Step 3: Cross multiply
    18,487.14x = 27,726.63 × 5,336.65
  4. Step 4: Simplify right side
    18,487.14x = 147,967,319.99
  5. Step 5: Solve for x
    x = 147,967,319.99/18,487.14
  6. Step 6: Final answer
    x = 8,003.80

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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.