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Finding the Fourth Proportional to 18,492.99, 27,725.64 and 6,005.55

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Solution

The fourth proportional to 18,492.99, 27,725.64 and 6,005.55 is: 9,003.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.99 : 27,725.64 = 6,005.55 : x
  2. Step 2: Convert to fraction form
    18,492.99/27,725.64 = 6,005.55/x
  3. Step 3: Cross multiply
    18,492.99x = 27,725.64 × 6,005.55
  4. Step 4: Simplify right side
    18,492.99x = 166,507,717.30
  5. Step 5: Solve for x
    x = 166,507,717.30/18,492.99
  6. Step 6: Final answer
    x = 9,003.83

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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.