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Finding the Fourth Proportional to 18,311.92, 27,467.87 and 17,376.98

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Solution

The fourth proportional to 18,311.92, 27,467.87 and 17,376.98 is: 26,065.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.92 : 27,467.87 = 17,376.98 : x
  2. Step 2: Convert to fraction form
    18,311.92/27,467.87 = 17,376.98/x
  3. Step 3: Cross multiply
    18,311.92x = 27,467.87 × 17,376.98
  4. Step 4: Simplify right side
    18,311.92x = 477,308,533.74
  5. Step 5: Solve for x
    x = 477,308,533.74/18,311.92
  6. Step 6: Final answer
    x = 26,065.46

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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.