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Finding the Fourth Proportional to 18,487.82, 27,725.84 and 6,004.91

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Solution

The fourth proportional to 18,487.82, 27,725.84 and 6,004.91 is: 9,005.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.82 : 27,725.84 = 6,004.91 : x
  2. Step 2: Convert to fraction form
    18,487.82/27,725.84 = 6,004.91/x
  3. Step 3: Cross multiply
    18,487.82x = 27,725.84 × 6,004.91
  4. Step 4: Simplify right side
    18,487.82x = 166,491,005.22
  5. Step 5: Solve for x
    x = 166,491,005.22/18,487.82
  6. Step 6: Final answer
    x = 9,005.45

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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.