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Finding the Fourth Proportional to 14,843.48, 20,487.12 and 14,375.12

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Solution

The fourth proportional to 14,843.48, 20,487.12 and 14,375.12 is: 19,840.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,843.48 : 20,487.12 = 14,375.12 : x
  2. Step 2: Convert to fraction form
    14,843.48/20,487.12 = 14,375.12/x
  3. Step 3: Cross multiply
    14,843.48x = 20,487.12 × 14,375.12
  4. Step 4: Simplify right side
    14,843.48x = 294,504,808.45
  5. Step 5: Solve for x
    x = 294,504,808.45/14,843.48
  6. Step 6: Final answer
    x = 19,840.68

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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.