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Finding the Fourth Proportional to 14,331.79, 19,777.89 and 8,044.21

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Solution

The fourth proportional to 14,331.79, 19,777.89 and 8,044.21 is: 11,101.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,331.79 : 19,777.89 = 8,044.21 : x
  2. Step 2: Convert to fraction form
    14,331.79/19,777.89 = 8,044.21/x
  3. Step 3: Cross multiply
    14,331.79x = 19,777.89 × 8,044.21
  4. Step 4: Simplify right side
    14,331.79x = 159,097,500.52
  5. Step 5: Solve for x
    x = 159,097,500.52/14,331.79
  6. Step 6: Final answer
    x = 11,101.02

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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.