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Finding the Fourth Proportional to 18,358.40, 27,537.60 and 16,361.60

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Solution

The fourth proportional to 18,358.40, 27,537.60 and 16,361.60 is: 24,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.40 : 27,537.60 = 16,361.60 : x
  2. Step 2: Convert to fraction form
    18,358.40/27,537.60 = 16,361.60/x
  3. Step 3: Cross multiply
    18,358.40x = 27,537.60 × 16,361.60
  4. Step 4: Simplify right side
    18,358.40x = 450,559,196.16
  5. Step 5: Solve for x
    x = 450,559,196.16/18,358.40
  6. Step 6: Final answer
    x = 24,542.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.