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Finding the Fourth Proportional to 18,238.59, 27,308.54 and 9,455.04

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Solution

The fourth proportional to 18,238.59, 27,308.54 and 9,455.04 is: 14,156.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.59 : 27,308.54 = 9,455.04 : x
  2. Step 2: Convert to fraction form
    18,238.59/27,308.54 = 9,455.04/x
  3. Step 3: Cross multiply
    18,238.59x = 27,308.54 × 9,455.04
  4. Step 4: Simplify right side
    18,238.59x = 258,203,361.68
  5. Step 5: Solve for x
    x = 258,203,361.68/18,238.59
  6. Step 6: Final answer
    x = 14,156.98

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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.