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Finding the Fourth Proportional to 18,366.58, 27,550.06 and 7,275.98

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Solution

The fourth proportional to 18,366.58, 27,550.06 and 7,275.98 is: 10,914.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,366.58 : 27,550.06 = 7,275.98 : x
  2. Step 2: Convert to fraction form
    18,366.58/27,550.06 = 7,275.98/x
  3. Step 3: Cross multiply
    18,366.58x = 27,550.06 × 7,275.98
  4. Step 4: Simplify right side
    18,366.58x = 200,453,685.56
  5. Step 5: Solve for x
    x = 200,453,685.56/18,366.58
  6. Step 6: Final answer
    x = 10,914.05

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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.