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Finding the Fourth Proportional to 18,361.96, 27,529.14 and 8,999.08

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Solution

The fourth proportional to 18,361.96, 27,529.14 and 8,999.08 is: 13,491.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,361.96 : 27,529.14 = 8,999.08 : x
  2. Step 2: Convert to fraction form
    18,361.96/27,529.14 = 8,999.08/x
  3. Step 3: Cross multiply
    18,361.96x = 27,529.14 × 8,999.08
  4. Step 4: Simplify right side
    18,361.96x = 247,736,933.19
  5. Step 5: Solve for x
    x = 247,736,933.19/18,361.96
  6. Step 6: Final answer
    x = 13,491.86

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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.