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Finding the Fourth Proportional to 19,651.44, 27,091.80 and 14,346.48

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Solution

The fourth proportional to 19,651.44, 27,091.80 and 14,346.48 is: 19,778.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.44 : 27,091.80 = 14,346.48 : x
  2. Step 2: Convert to fraction form
    19,651.44/27,091.80 = 14,346.48/x
  3. Step 3: Cross multiply
    19,651.44x = 27,091.80 × 14,346.48
  4. Step 4: Simplify right side
    19,651.44x = 388,671,966.86
  5. Step 5: Solve for x
    x = 388,671,966.86/19,651.44
  6. Step 6: Final answer
    x = 19,778.29

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