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Finding the Fourth Proportional to 21,241.44, 29,299.32 and 14,167.44

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Solution

The fourth proportional to 21,241.44, 29,299.32 and 14,167.44 is: 19,541.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241.44 : 29,299.32 = 14,167.44 : x
  2. Step 2: Convert to fraction form
    21,241.44/29,299.32 = 14,167.44/x
  3. Step 3: Cross multiply
    21,241.44x = 29,299.32 × 14,167.44
  4. Step 4: Simplify right side
    21,241.44x = 415,096,358.14
  5. Step 5: Solve for x
    x = 415,096,358.14/21,241.44
  6. Step 6: Final answer
    x = 19,541.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.