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Finding the Fourth Proportional to 18,903.44, 28,372.44 and 14,506.64

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Solution

The fourth proportional to 18,903.44, 28,372.44 and 14,506.64 is: 21,773.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.44 : 28,372.44 = 14,506.64 : x
  2. Step 2: Convert to fraction form
    18,903.44/28,372.44 = 14,506.64/x
  3. Step 3: Cross multiply
    18,903.44x = 28,372.44 × 14,506.64
  4. Step 4: Simplify right side
    18,903.44x = 411,588,773.00
  5. Step 5: Solve for x
    x = 411,588,773.00/18,903.44
  6. Step 6: Final answer
    x = 21,773.22

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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.