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Finding the Fourth Proportional to 18,558.71, 27,847.64 and 8,698.99

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Solution

The fourth proportional to 18,558.71, 27,847.64 and 8,698.99 is: 13,052.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558.71 : 27,847.64 = 8,698.99 : x
  2. Step 2: Convert to fraction form
    18,558.71/27,847.64 = 8,698.99/x
  3. Step 3: Cross multiply
    18,558.71x = 27,847.64 × 8,698.99
  4. Step 4: Simplify right side
    18,558.71x = 242,246,341.88
  5. Step 5: Solve for x
    x = 242,246,341.88/18,558.71
  6. Step 6: Final answer
    x = 13,052.97

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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.